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Effect of irrigation

VIEWS: 13 PAGES: 21

									Table 1.       Effect of irrigation, fertilizer and planting density on plant height and total number of tillers hill -1 at different DAT in
               BRRI dhan28

    Treatments                                 Plant height (cm) at                                                        Total tillers hill-1 at
                           30 DAT       45 DAT       60 DAT         75 DAT            Harvest        30 DAT         45 DAT      60 DAT             75 DAT           Harvest
Irrigation
          I1               44.93 a      67.64 a         79.98 a        84.78 a        98.26 a         16.18 a        20.08 a        22.77 a        16.20 a          15.68 a

          I2               40.81 b      62.39 b         71.79 b        82.93 b        91.95 b        14.10 b        16.54 b        18.77 b        15.34 b           13.27 b
LSD (0.05)                   0.665       5.053           5.192          1.553          3.780          1.493          2.898          2.151          0.297             2.281
Fertilizer
                                                                                                                                                                    13.42 b
         F1                42.04 b      63.23 b         72.31 b        81.79 b        93.05 b        13.35 b        16.58 b        19.89 b        14.71 b

         F2                43.70 a      66.80 a         79.46 a        85.92 a        97.15 a         16.94 a        20.04 a        21.64 a        16.83 a          15.52 a
LSD (0.05)                   1.518       2.756           6.298          1.454          4.059          2.882          1.455          1.495          0.402             1.977
Density
         D1                40.82 b      62.91 b         72.22 c        79.09 c        90.07 c        11.31 b         12.53 c        14.52 c        10.36 c           9.07 c

         D2                43.07 a      65.63 a         76.05 b        84.19 b        96.07 b         16.89 a       20.12 b        22.85 b        17.67 b           16.47 b

         D3                44.71 a      66.51 a         79.39 a        88.30 a        99.17 a         17.23 a        22.28 a        24.93 a        19.29 a          17.88 a
LSD (0.05)                   2.203       1.645           2.154          2.924          1.901          0.989          0.907          0.757          1.349             1.072

Common letters within the column do not differ significantly at 5 % and 1 % levels as per DMRT analysis.

I1 : Continuous standing water                    F1 : BRRI recommendation (Urea 220 kg, 120 kg TSP, 120 kg MP, 60 kg gypsum, 10 kg zinc sulphate ha -1)     D1 : 68 plants/m2
I2 : Irrigation at 3 days after water             F2 : Soil test based (Urea 277 kg, 198 kg TSP, 111 kg MP, 60 kg gypsum, 10 kg zinc sulphate ha -1)         D2 : 33 plants/m2
disappearance
                                                                                 48
     D3 : 27 plants/m2




48
Table 2. Effect of irrigation, fertilizer and planting density on yield and yield attributes at maturity in BRRI dhan28

                           Effective         Panicle      Number of       Number of       Weight of       Grain yield     Straw yield      Biological      Harvest index
    Treatments            tillers hill-1   length (cm)      grains         unfilled       1000 grain        (t ha-1)        (t ha-1)         yield             (%)
                                                           panicle-1        grains                                                          (t ha-1)
                                                                           panicle-1
Irrigation
         I1                 12.96 a          22.13a         91.98 a         10.52 b         25.14 a          5.03 a          6.95 a         11.98 a            41.99a

         I2                 11.28 b          21.96a        85.03 b          11.01 a         22.05 b          4.11 b          6.19 b         10.30 b            39.90a
LSD (0.05)                   0.646           0.321          4.322            0.248           3.022           0.879           0.756           1.452              0.256
Fertilizer
         F1                 11.48 b          22.05a         86.85 b         11.36 a         22.47 b          4.34 b          6.40 b          10.74 b           40.41a

         F2                 12.76 a          22.04a         90.16 a         10.17 b         24.72 a          4.80 a          6.74 a          11.54 a           41.59a
LSD (0.05)                   0.029           0.127           0.763           0.416           0.418           0.387           0.185            0.349             0.314
Density
         D1                  7.45 c          21.41 b        79.50 c         11.09 a         22.56 b          4.19 b          6.70 a          10.89 b           38.48 c

         D2                 13.97 b         21.97 ab        91.55 b         11.03 a        23.61 ab          4.71 a          6.67 a          11.38 a           41.39 b

         D3                 14.94 a          22.45 a        94.47 a         10.18 b         24.62 a          4.82 a          6.35 b          11.17 a           43.15 a
LSD (0.05)                   0.769           0.960           2.492           0.704           1.154           0.171           0.180            0.217             1.142

Common letters within the column do not differ significantly at 5 % and 1 % levels as per DMRT analysis.
I1 : Continuous standing water                    F1 : BRRI recommendation (Urea 220 kg , 120 kg TSP, 120 kg MP, 60 kg gypsum, 10 kg zinc sulphate      D1 : 68 plants/m2
                                                  ha-1)
I2 : Irrigation at 3 days after water             F2 : Soil test based (Urea 277 kg, 198 kg TSP, 111 kg MP, 60 kg gypsum, 10 kg zinc sulphate ha-1)     D2 : 33 plants/m2
disappearance

                                                                                48
                                                                                                                                                             D3 : 27 plants/m2

Table 3. Interaction between irrigation, fertilizer and planting density on yield and yield attributes at maturity in BRRI dhan28
                                Effective         Panicle       Number of        Number of       1000-grain     Grain yield      Straw yield      Biological          Harvest
Treatment                      tillers hill-1   length (cm)       grains          unfilled       weight (g)       (t ha-1)         (t ha-1)         yield           index (%)
combination                                                      panicle-1         grains                                                          (t ha-1)
                                                                                  panicle-1
Irrigation × Fertilizer
         I1F1                    12.36 b          22.30a         91.15 b          11.37 a          24.04a           4.79a           6.80a           11.59a            41.15a
           I1F2                  13.55 a          21.95a          92.81 a          9.67 c          26.24a           5.28a           7.11a           12.38a            42.61a
           I2F1                  10.60 d          21.80a         82.55 d          11.36 a          20.89a           3.90a           6.01a           9.91a             39.31a
        I2F2                     11.97 c          22.12a          87.51 c         10.66 b          23.21a          4.32a            6.37a           10.69a            40.34a
LSD (0.05)                        0.041           0.182            1.078           0.588           0.153           0.261            0.158           0.717             0.625

Common letters within the column do not differ significantly at 5 % and 1 % levels as per DMRT analysis.

I1 : Continuous standing water                      F1 : BRRI recommendation (Urea 220 kg 120 kg TSP, 120 kg MP, 60 kg gypsum, 10 kg zinc sulphate
                                                    ha-1)
I2 : Irrigation at 3 days after water               F2 : Soil test based (Urea 277 kg 198 kg TSP, 111 kg MP, 60 kg gypsum, 10 kg zinc sulphate ha -1)
disappearance




                                                                                  48
    Table 4: Cost of production of rice seedlings of 1200 m2 for D1 planting
              density (68 plants m-2) of boro rice
Head of expenditure                                           Quantify / 1200 m2   Total cost
                                                                                     (Tk.)
                                       Human labourer                 2.4           960.00
Input    Non-material      Labourer    (man/day)
cost     input                         Animal labourer                  5            200.00
                                       (animal / day)

Non-material input cost                                                             1160.00

                                                                   60 kg             645.00
                   Rice seeds
                                                                   24 kg             144.00
                                Urea
                                                                   30 kg             390.00
                   Fertilizers Triple super phosphate (TSP)
                                                                   18 kg             180.00
Material input                  Muriate of potash (MP)
                                                                4 irrigations        240.00
                   Water
                                                              150 g/ 60 kg seed       88.0
                   Pesticides
                                                                                       --
                  Miscellaneous
Material input cost                                                                1687.00
Total input cost (IC)                                                              2847.00

                    Interest on input cost                    2847.00 Taka           60.00


                                                                   48
                  Interest on value of land                   18000.00 Taka         378.00
Overhead cost
                  Miscellaneous overhead cost                 2847.00 Taka          143.00
                  (common cost)

Total overhead cost                                                                 581.00
Total cost of production (TCP)                                                      3428.00



    Table 5. Cost of production of rice seedlings of 600 m2 for D2 planting
              density (33 plants m-2) of boro rice
    Head of expenditure                                     Quantify /600     Total cost
                                                                m2              (Tk.)

                                          Human labourer         12            480.00
            Non-material      Labourer    (man/day)
    Input
            input                         Animal labourer        2              80.00
    cost
                                          (animal / day)

    Non-material input cost                                                     560.00

                                                               30 kg           323.00
                      Rice seeds
                                                               12 kg            72.00
                                         Urea
                                                               15 kg           195.00
                      Fertilizers        Triple super
                                         phosphate (TSP)


                                                                      48
                                                         9 kg         90.00
                                       Muriate of
Material input                         potash (MP)
                                                     4 irrigations   120.00
                   Water
                                                      75 g/ 30 kg     44.0
                   Pesticides                            seed
                                                                        --
                  Miscellaneous
Material input cost                                                  844.00
Total input cost (IC)                                                1404.00

                    Interest on input cost           1404.00 Taka     30.00

                    Interest on value of land        9000.00 Taka    189.00
Overhead cost
                    Miscellaneous overhead cost      1404.00 Taka     71.00
                    (common cost)

Total overhead cost                                                   290.00
Total cost of production (TCP)                                       1694.00




                                                             48
  Table 6. Cost of production of rice seedlings of 500 m2 for D3 planting
           density (27 plants m-2)of boro rice
Head of expenditure                                        Quantify / 500 m2     Total cost
                                                                                   (Tk.)
                                          Human labourer           10             400.00
          Non-material     Labourer       (man/day)
Input
          input                           Animal labour            2               80.00
cost
                                          (animal / day)

Non-material input cost                                                           480.00

                                                                 25 kg            229.00
                 Rice seeds
                                                                 10 kg             60.00
                               Urea
                                                                12.5 kg           163.00
                 Fertilizers   Triple super phosphate
                               (TSP)
                                                                 7.5 kg            75.00
Material input                 Muriate of potash (MP)
                                                              4 irrigations       100.00
                 Water
                                                           62.5 g/ 25 kg seed      36.00
                 Pesticides
                                                                                     --
                 Miscellaneous
Material input cost                                                             703.00
Total input cost (IC)                                                           1183.00

                 Interest on input cost                     1183.00 Taka          25.00

                                                                    48
                        Interest on value of land                         7500.00 Taka            158.00
Overhead
cost                    Miscellaneous overhead cost                       1183.00 Taka             60.00
                             (common cost)

Total overhead cost                                                                               243.00
Total cost of production (TCP)                                                                    1426.00



  Table 7. Total cost of production ha-1 and its distribution over different head of expenditure in boro rice production
  under different irrigation,
           fertilizer and planting density
                                                                                     Continuous standing water (I1)
                                                     BRRI recommended fertilizer (F1)                                Soil test based (kit test) fertilizer (F2)
  Head of expenditure                         D1                      D2                       D3                 D1                    D2                       D3
                                    Actual cost     % of   Actual cost   % of         Actual      % of    Actual      % of       Actual      % of         Actual      % of
                                            -1                     -1
                                     (Tk. ha )      TCP     (Tk. ha )    TCP           cost       TCP      cost       TCP         cost       TCP           cost       TCP
                                                                                            -1                  -1                     -1                       -1
                                                                                    (Tk. ha )            (Tk. ha )              (Tk. ha )                (Tk. ha )
  I. Input cost
  A. Non-material input
    a. labourer
     -human                           11200         29.32       9120        26.86        8160      25.04       11320      28.20      9280      25.82       8320       24.07
     - animal                          1200          3.14       1200         3.53        1200       3.68        1200       2.99      1200       3.34       1200        3.47
  Non-material input cost             12400         32.46      10320        30.39        9360      28.72       12520      31.19     10480      29.17       9520       27.54
  A.     Material input
       b. Rice seedlings               3428          8.97       1694        4.99         1426       3.38       3428        8.54      1694       4.72       1426       4.13

    c. Fertilizers                     4570         11.96       4570        13.46        4570      14.02       6186       15.43      6186      17.22       6186       17.90

       d. Water                        4760         12.46       4760        14.02        4760      14.61       4760       11.86      4760      13.25       4760       13.77

       e. Insecticide                   750          1.96       750         2.21         750        2.30        750        1.87       750       2.09       750        2.17

                                                                                    48
Material input cost                     13508           35.36      11774        34.68         11506      35.31      15124       37.70      13390      37.27      13122       37.97
Total input cost (IC)                   25908           6783       22094        65.07         20866      64.03      27644       68.89      23870      66.43      22642       65.51

II. Overhead cost
    f. interest on input cost             1619           4.24       1380         4.06         1304       4.00        1727        4.30      1492       4.15       1415        4.10
   g. interest on value of land           9375          24.54       9375        27.62         9375       28.77       9375       23.36      9375       26.09      9375        27.12
   h. Common cost                         1295           3.39       1104         3.25         1043       3.20        1382        3.45      1194       3.32       1132        3.27
Total overhead cost (OC)                  12289         32.17      11859        34.93         11722      35.97      12484       31.11      12061      33.57      11922       34.49
Total cost of production (TCP)            38197         100.00     33953        100.00        32588     100.00      40128       100.00     35931     100.00      34564       100.0

                     -2                            -2                      -2
 D1 = 68 Plants m               D2 = 33 Plants m           D3=27 Plants m
Table: Contd.
                                                                              Irrigation at 3 days after water disappearance (I2)
                                                         BRRI recommended fertilizer (F1)                                  Soil test based (kit test) fertilizer (F2)
                                              D1                          D2                      D3                    D1                    D2                        D3
                                    Actual cost         % of     Actual      % of        Actual      % of       Actual      % of       Actual       % of        Actual       % of
                                           -1
                                    (Tk. ha )           TCP       cost       TCP          cost       TCP         cost       TCP         cost        TCP           cost       TCP
Head of expenditure                                                    -1                      -1                     -1                     -1                        -1
                                                                (Tk. ha )              (Tk. ha )               (Tk. ha )              (Tk. ha )                (Tk. ha )
I. Input cost
A. Non-material input

   a.     Lobourer
        - human                         10760           29.99      8680         27.43         7680      25.40       10840       28.70      8760       26.13      7760        24.16
     -    animal                         1200            3.34      1200          3.80         1200       3.97        1200        3.18      1200        3.58      1200         3.74
Non-material input cost                 11960           33.33      9880         31.23         8880      29.37       12040       31.88      9960       29.71      8960        27.90
B. Material input

  b. Rice seedlings                     3428            9.55       1694         5.35          1426       4.72       3428        9.08       1694        5.05      1426        4.44

  c. Fertilizers                        4570            12.74      4570         14.45         4570      15.12       6186        16.38      6186       18.45      6186        19.26
  d. Water                              3120             8.64      3120          9.86         3120      10.32       3120         8.26      3120        3.91      3120         9.71
  e. Insecticide                        750              2.09       750          2.37          750       2.48        750         1.98       750        2.24       750         2.34

                                                                                         48
Material input cost                     11868           33.07        10134        32.03           9866       32.64      13484       35.70      11750       35.04     11482         35.75
Total input cost (IC)                   23828           66.40        2014         63.26           18746      62.01      25524       67.58      21710       64.75     20442         63.65
II. Overhead cost
[




    f. interest on input cost             1489          4.15         1250          3.95           1172        3.88       1595        4.44       1357       4.05       1278         3.98
    g. interest on value of land          9375          26.13        9375         29.63           9375       31.01       9375       24.82       9375      27.96       9375         29.19
    h. Common cost                        1191          3.32         1000          3.16            937        3.10       1276        3.38       1085       3.24       1022         3.18

Total overhead cost (OC)                  12055         33.60        11625        36.74           11484      37.99      12246       32.42      11817      35.25      11675         36.35
Total cost of production (TCP)            35883         100.0        31639        100.00          30230      100.00     37770       100.0      33527      100.0      32117         100.0


                   -2                              -2                        -2
D1 = 68 Plants m                D2 = 33 Plants m           D3=27 Plants m




Table 8. Operation-wise break up of the total inputs cost of production of boro rice under different irrigation,
fertilizer and planting density
                                                                Continuous standing water (I1)                               Irrigation at 3 days after water disappearance (I2)

                                          BRRI recommended fertilizer                Soil test based (kit test)         BRRI recommended fertilizer        Soil test based (kit test)
                                                    (F1)                                   fertilizer (F2)                        (F1)                           fertilizer (F2)
Production particulars
                                           D1        D2         D3                  D1            D2         D3           D1       D2        D3            D1           D2        D3

                                           Cost           Cost         Cost         Cost            Cost       Cost       Cost       Cost       Cost       Cost       Cost       Cost
                                         (Tk./ha)       (Tk./ha)     (Tk./ha)     (Tk./ha)        (Tk./ha)   (Tk./ha)   (Tk./ha)   (Tk./ha)   (Tk./ha)   (Tk./ha)   (Tk./ha)   (Tk./ha)

I. Land preparation                       2400           2400         2400         2400            2400       2400       2400       2400       2400       2400       2400        2400




                                                                                             48
II. Fertilization                      4730          4730       4730        6386         6386      6386      4730     4730    4730    6386        6386     6386

III. Transplanting                     6628          3774       3106        6628         3774      3106      6628     3774    3106    6628        3774     3106

IV. Weeding                            1600          1200       1080        1600         1200      1080      2000     1600    1400    2000        1600     1400

V. Irrigation                          6120          6120       6120        6120         6120      6120      3760     3760    3760    3760        3760     3760
VI. Plant protection                    870          6820       6820         870          830       830      870       830     830     870        830      6820

VII. Harvesting                        2000          1600       1280        2000         1600      1280      2000     1600    1280    2000        1600     1280

VIII. Carrying the harvest              280           240       200          280          280       240      240       200     200     240        200      200

IX. Threshing                           640           600       560          640          600       556      600       560     520     600        560      520
     (by pedal thresher)
X. Cleaning, drying, weighing           200           240       240          240          280       280      200       240     240     200        2400     240
    and bagging of grains
XI. Straw drying and heaping            440           360       320          480          400       360      400       320     280     440        360      320

Total input cost (TIC)                 25908         22094     20866        27644        23870     22642    23828     20014   18746   25524      23870    20442


                    -2                          -2                     -2
D1 = 68 Plants m             D2 = 33 Plants m          D3=27 Plants m



Table 9. Operation-wise breakup of the labourer requirement for production of boro rice under
different irrigation, fertilizer and planting density

                                                                                         Human labourer (man-days / ha)                       Animal labourer
                                                                                                                                             (animal-days /ha)
                                                                                          Continuous standing water (I1)




                                                                                    48
  Production operations                                         BRRI recommended fertilizer (F1)           Soil test based (kit test) (F2)


                                                                     D1               D2         D3          D1         D2           D3      For all treatment

  Land preparation                                                   30               30         30          30         30           30             30

  Fertilizer application                                              4                4         4           5           5           5              --

  Transplanting                                                      80               52         42          80         52           42             --

  Weeding                                                            40               30         27          84         30           27             --

  Irrigation                                                         34               34         34          34         34           34             --

  Plant protection                                                    3                2         2           3           2           2              --

  Harvesting                                                         50               40         32          50         40           32             --

  Carrying the harvest                                                7                6         5           7           7           6              --

  Threshing (by pedal thresher)                                      16               15         14          16         15           14             --

  Cleaning, drying, weighing and bagging of grains                    5                6         6           6           7           7              --

  Straw drying and heaping                                           11                9         8           12         10           9              --

  Total                                                              280              220       204         283         232          208            30

                     -2                       -2                -2
  D1 = 68 Plants m         D2 = 33 Plants m        D3=27 Plants m
Table contd.

                                                                                       Human labourer (man-days / ha)                         Animal labourer
                                                                                                                                                            -1
                                                                                                                                             (animal-days ha )
                                                                           Irrigation at three days after water disappearance (I2)




                                                                                 48
                                                              BRRI recommended fertilizer (F1)   Soil test based (kit test) (F2)
Production operations
                                                                   D1         D2         D3         D1         D2           D3     For all treatment

Land preparation                                                   30         30         30,        30         30           30            30

Fertilizer application                                             4          4          4          5           5            5            --

Transplanting                                                      80         52         42         80         52           42            --

Weeding                                                            50         40         35         50         40           35            --

Irrigation                                                         16         16         16         16         16           16            --

Plant protection                                                   3          2          2          3           2            2            --

Harvesting                                                         50         40         32         50         40           32            --

Carrying the harvest                                               6          5          5          6           5            5            --

Threshing (by pedal thresher)                                      15         14         13         15         14           13            --

Cleaning, drying, weighing and bagging of grains                   5          6          6          5           6            6            --

Straw drying and heaping                                           10         8          7          11          9            8            --

Total                                                              269      217         192        271         219          194           30

                   -2                       -2                -2
D1 = 68 Plants m         D2 = 33 Plants m        D3=27 Plants m




                                                                         48
  Table 10. Analysis of cost, output and return ha-1 of boro rice under different irrigation, fertilizer and planting
  density
                                                              Continuous standing water (I1)                       Irrigation at 3 days after water disappearance (I2)
                                               BRRI recommended fertilizer      Soil test based (kit test)      BRRI recommended fertilizer       Soil test based (kit test)
Particulars                                              (F1)                         fertilizer (F2)                       (F1)                        fertilizer (F2)

                                                 D1          D2         D3          D1           D2      D3       D1          D2         D3        D1        D2         D3

I. Total cost of production                    38197        33953     32588        40128        35931   34564    35883      31639      30230      37770     32527     32117
               -1
       (Tk. ha )
II. Output (yield)
                               -1
   a. Product (grain) (t ha )                   4.3         4.73       4.78        4.50         5.08    5.23     4.12        4.60       4.67       4.34     4.88       4.97
                                      -1
   b. By product (Straw) (t ha )                6.4         6.23       5.98        6.46         6.45    6.22     6.15        6.14       5.74       6.31     6.19       5.99

                          -1
III. Gross income (Tk. ha )

   a. Product                                  34400        37840     38240        36000        40640   41840    32960      36800      37360      34720     39040     39760

   b. By product                               6400         6230       5980        6460         6450    6220     6150        6140       5740      6310      6190       5990

IV. Net income (+) or loss (-)                 2603         10117     11632        2332         11159   13496    3227       11301      12870      3260      11703     13633
    (Tk./ha)

V. a. Net income (+) or loss (-) / Tk.          0.07        0.30       0.36        0.06         0.31    0.39     0.09        0.36       0.42       0.09     0.35       0.43
      invested (Tk.)

   b. Benefit –cost ratio (BCR)                 1.07        1.30       1.36        1.06         1.31    1.39     1.09        1.36       1.42       1.09     1.35       1.43


                     -2                                -2                     -2
  D1 = 68 Plants m                  D2 = 33 Plants m          D3=27 Plants m




                                                                                           48
Appendix 1. Climatological data of the study area, ICM Project, Thakugaon, during growing season of Boro
rice (Days after planting), 2003.
                                           0
Month              Average temperature C           Avg. pan      Crop             Rainfall (mm)   Avg. sun-shine,        Relative humidity
                                                                                                         -1
                                                   Evaporation   coefficient Kc                   hrs day
                                                           -1
                                                   (mm day )
                   Maximum          Minimum                                                                         Morning       Evening

February (19-28)   27.7             12.5           2.5           1.25             17              8.0               92            67
March              30.9             16.6           4.8           1.00             21              8.4               89            66.7


April              34.5             20.3           5.7           1.00             208             7.9               85            64


May (1-25)         32.5             22.6           2.9           1.00             32              7.1               91            73


Appendix II. Effect of irrigation, fertilizer and planting density on nutrient content at booting stage


 Treatment                % Nitrogen           % Phosphorus      % Potassium            % Sulphur         % Magnesium           % Calcium

 I1F1D1                     0.434                 0.104                 0.031             0.222               0.622               0.365

 I1F1D2                     0.511                 0.116                 0.036             0.251               0.642               0.384

 I1F1D3                     0.532                 0.140                 0.038             0.291               0.668               0.390

 I1F2D1                     0.469                 0.104                 0.022             0.224               0.627               0.377

 I1F2D2                     0.546                 0.148                 0.034             0.293               0.705               0.420


                                                                         48
  I1F2D3                     0.567              0.179               0.034                0.318               0.753                0.440

  I2F1D1                     0.448              0.098               0.033                0.212               0.612                0.360

  I2F1D2                     0.525              0.108               0.029                0.233               0.632                0.380

  I2F1D3                     0.525              0.124               0.035                0.255               0.651                0.389

  I2F2D1                     0.476              0.099               0.036                0.213               0.613                0.362

  I2F2D2                     0.553              0.118               0.035                0.252               0.664                0.384

  I2F2D3                     0.588              0.132               0.044                0.280               0.656                0.390



Appendix III. Analysis of variance of the data on plant height and total number of tillers hill -1 in BRRI dhan28 as influenced by
           irrigation, fertilizer and planting density

Source of variation   Degrees                                                      Mean square
                      of                            Plant height (cm) at                                         Total tillers hill-1 at
                      freedom        30 DAT   45 DAT      60 DAT       75 DAT   Harvest          30 DAT    45 DAT     60 DAT           75 DAT   Harvest
Replication              2           11.224    41.76      23.55       1.327      95.15            2.083     2.528        1.750        4.788     0.827

Factor A                 1       152.44**     248.54*    603.69*      30.97*    358.72*          39.06*    112.36*      144.00*     6.579**     52.06*
(Irrigation)

Error                    2           0.215     12.41      13.105      1.172      6.946            1.083     4.083        2.250        0.043     2.530

Factor B                 1           24.90*   114.67*    460.10*     153.39**   151.29*          115.92*   108.16**     27.738*     40.768**    39.63*
(Fertilizer)



                                                                     48
A×B                           1              3.973        4.921          3.460         11.937     3.062      5.444      2.778      2.778      0.189      0.046

Error                         4              2.692        8.865         46.311          2.469     19.238     9.694      2.472      2.611      1.520      4.564

Factor C (Density)            2         45.63**         42.31**        154.68**       255.31**   257.14**   132.58**   314.53**   364.58**   271.72**   268.63**

A×C                           2              0.377        2.441          0.068          2.070     2.679      0.250      1.083      1.750      0.140      0.149

B×C                           2              0.981        2.153          6.826         10.435     15.74      0.028      1.750      1.361      2.865      0.105

A×B×C                         2              0.817        0.308          0.314          0.879     0.873      0.361      0.194      0.194      0.675      0.505

Error                        16              6.479        3.614          6.196         11.413     4.824      1.306      1.097      0.764      2.429      1.533


** Significant at 1 % level of probability      * Significant at 5 % level of probability




                                                                                      48
Appendix IV. Analysis of variance of the data on yield and yield attributes in BRRI dhan28 as influenced by irrigation, fertilizer
             and planting density
Source of variation      Degrees                                                                         Mean square
                         of             Effective          Panicle        Number of         Number of     Weight of    Grain yield   Straw yield   Biological    Harvest
                         freedom       tillers hill-1    length (cm)        grains           unfilled    1000 grain      (t ha-1)      (t ha-1)      yield      index (%)
                                                                           panicle-1          grains                                                (t ha-1)
                                                                                             panicle-1
Replication                   2              3.831          0.917            25.55            0.069         1220         1.579         0.607         4.010       15.77

Factor A                      1          25.20**           0.250**          434.10*          2.176*        85.87*        7.682*        5.229*       25.59*       37.94
(Irrigation)

Error                         2              0.203          8.225            9.082            0.030         5.353        0.376         0.278         1.025       4.997

Factor B                      1          14.82**            0.003          98.572**          12.85**      45.79**        1.845*       1.007**       5.577**      13.93
(Fertilizer)

A×B                           1          0.068**            0.980           24.55**          2.235*         0.028        0.012         0.006         0.001       0.429

Error                         4              0.001          1.378            0.679            0.202         0.204        0.175         0.040         0.142       7.350

Factor C (Density)            2         199.35**            5.372*         755.24**          3.112*       12.71**       1.374**       0.462**       0.715**     67.82**

A×C                           2              0.030          1.772            0.652            1.136         3.995        0.001         0.004         0.007       1.050

B×C                           2              0.607          0.195            1.082            0.728         5.654        0.006         0.060         0.105       0.425

A×B×C                         2              0.092          0.996            9.784            0.107         4.778        0.004         0.078         0.115       0.320

Error                        16              0.789          1.231            8.289            0.662         1.777        0.039         0.043         0.063       1.740

** Significant at 1 % level of probability      * Significant at 5 % level of probability

                                                                                      48
Appendix V: Physical and chemical characteristics of soil of the experimental plot

 A. Physical characteristics                          0-20 cm depth
    Textural class                                      Silty loam
    Sand (%)                                              17.42
    Slit (%)                                              60.72
    Clay (%)                                              21.85
    Moisture (air dry soil ) (%)                           4.08
    Field capacity (%)                                    27.90
    Maximum water holding capacity (%)                    57.20
    Bulk density (g cm-3)                                  1.47
    Particle density (g cm-3)                              2.71
    Porosity (%)                                          45.76
    Hydraulic conductivity (cm hr-1)                       0.68
 B. Chemical characteristics                          0-20 cm depth
    pH                                                     6.8
    ECE (m. c. %)                                          8.4
    Total nitrogen (%0                                     0.09
    Organic carbon (%0                                     0.68




                                                                  48
Appendix VI. Cost rates of different items of individuals in boro rice

Items of expenditure                            Rate (Taka)
I. labour
  a) Human                                      40.00 man day-1
  b) Animal                                     40.00 animal day-1 of 8 hr of pair of bullock
II. Rice seed                                   10.75 kg-1
III. Fertilizers
    a) Urea                                     6.00 kg-1
    b) TSP                                      13.00 kg-1
    c) MP                                       10.00 kg-1
    d) Gypsum                                   4.00 kg-1
    e) Zinc sulphate                            60.00 kg-1
IV. Water
    a) Full irrigation (5 cm)                   390 ha-1
    b) 3 cm irrigation                          280 ha-1
V. Pesticide
    a) Insecticide (Furadan 5 G)                75.00 kg-1
VI. Land value                                  1,50,000.00 ha-1
VII. Interest on input cost and value of land   12.5 % annum-1
VIII. Common cost                               5.00/ 100 Tk. of input cost




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