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Objectives Treatment Application of Application of Humic acid in

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					Application of Humic acid in pomegranate nursery


Objectives:
   To analyze the effect of humic acid application on plant growth in
   nursery production through the observed changes in the
   diameter, height and root system development of the sapling.
   To analyze the changes in the soil physical and chemical
   properties after humic acid application.

Treatment:
  Starter nutrients: 31 Kg Urea+31Kg DAP+5Mt manure
       N=37 Kg/ha, P2O5=23.4 Kg/ha, K2O=22.7 Kg/ha
  Humic acid: 200 Kg/Ha, 2 application (June and July 2008) 100Kg
  each in1:8 proportion with water, side application in10 cm soil
  dept.
  Fulvic acid: 10 l/Ha, foliar application, 1:10 with water (August
  2008)
  Irrigation: Furrow type surface irrigation.
                                                         13.-
               Humic Substances in Ecosystems 8, Šoporňa 13.-17.9.2009 Slovakia
Application of Humic acid in pomegranate nursery

                                                  Plant growth

      10.00                                                                                             120.00

       9.00
                                                                                                        100.00
       8.00

       7.00
                                                                                                        80.00
       6.00
 mm




                                                                                                                  cm
       5.00                                                                                             60.00

       4.00
                                                                                                        40.00
       3.00

       2.00
                                                                                                        20.00
       1.00

       0.00                                                                                             0.00
                   May         June       July        August      September      October   November

              Test plant diameter     Control plant diameter         Test plant height     Control plant height
                                      Humic Substances in Ecosystems 8, Šoporňa
                                                13.-
                                                13.-17.9.2009 Slovakia
Application of Humic acid in pomegranate nursery




                Humic Substances in Ecosystems 8, Šoporňa
                         13.-
                         13.-17.9.2009 Slovakia
Application of Humic acid in pomegranate nursery




                Humic Substances in Ecosystems 8, Šoporňa
                         13.-
                         13.-17.9.2009 Slovakia
  Regression



                                        Application of Humic acid
                                        in pomegranate nursery


 Regression                                  Regression




Regression                                  Regression




               Humic Substances in Ecosystems 8, Šoporňa
                        13.-
                        13.-17.9.2009 Slovakia
  Regression



                                        Application of Humic acid
                                        in pomegranate nursery

                                            Regression


 Regression




                                            Regression
Regression




               Humic Substances in Ecosystems 8, Šoporňa
                        13.-
                        13.-17.9.2009 Slovakia
Application of Humic acid in pomegranate nursery




               Humic Substances in Ecosystems 8, Šoporňa
                        13.-
                        13.-17.9.2009 Slovakia
       Application of Humic acid in pomegranate nursery


                             Sapling development
                                                                               40%           60%
                                                                                     Test plants




                                                                               No. of branches = 2
No. of branches > 3
                                                                               No. of branches > 3

                                                                               28%     72%
                                                                                  Control plants

No. of branches = 3




No. of branches = 2



                  0%   10%   20%        30%         40%         50%      60%     70%      80%


                             Humic Substances in Ecosystems 8, Šoporňa
                                      13. Control
                                   Test -17.9.2009 Slovakia
                                      13.-
Application of Humic acid in pomegranate nursery




                                                     13.-
           Humic Substances in Ecosystems 8, Šoporňa 13.-17.9.2009 Slovakia
      Application of Humic acid in pomegranate nursery

                                       Number of roots


      90

      80

      70

      60

      50
No.
      40

       30

       20

       10

           0
               1   2   3   4                                                                Test plant
                                 5
                                           6                                               Control plant
                                                    7
                                                              8
                                                                           9
                                                                               10
                                                                                    Ave.

                               Humic Substances in Ecosystems 8, Šoporňa
                                        13.-17.9.2009 Test plant
                                      Control plant Slovakia
                                        13.-
Application of Humic acid in pomegranate nursery




               Humic Substances in Ecosystems 8, Šoporňa
                        13.-
                        13.-17.9.2009 Slovakia
   Application of Humic acid in pomegranate nursery

0.90                                                                                                            8.20
                                                                           Soil test results
0.80
                                                                        Salinity %          EC       pH         8.10

0.70

                                                                                                                8.00
0.60


                                                                                                                7.90
0.50


0.40
                                                                                                                7.80


0.30
                                                                                                                7.70

0.20

                                                                                                                7.60
0.10


0.00                                                                                                            7.50
       January-08   September-08       January-08        September-08          January-08        September-08
                                   Humic Substances in Ecosystems 8, Šoporňa
        0-15 cm       0-15 cm               13.-17.9.2009 Slovakia cm
                                        15-30 cm
                                            13.-            15-30              30-45 cm            30-45 cm
 Application of Humic acid in pomegranate nursery

                                           Soil test results

       250.0




       200.0




       150.0

mg/l

       100.0




        50.0




         0.0
               January-08   September-08    January-08      September-08      January-08   September-08

                0-15 cm       0-15 cm        15-30 cm          15-30 cm       30-45 cm       30-45 cm
                                  Humic Substances in Ecosystems 8, Šoporňa
                                           13.- P-PO4        K
                                           13.-17.9.2009 Slovakia
  Application of Humic acid in pomegranate nursery


                                      Soil test result



    12.0


    10.0


     8.0


mg/l 6.0


     4.0


     2.0


     0.0
                                            N-NO3

           0-15 cm January-08       0-15 cm September-08          15-30 cm January-08
                            Humic Substances in Ecosystems 8, Šoporňa
           15-30 cm September-08 30-45 cm January-08
                                      13.-17.9.2009 Slovakia
                                      13.-                        30-45 cm September-08

				
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