Mango-Poster-2011 by changcheng2

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									 Effect of Supplemental Nitrogen and Potassium Fertilization on Yield and Fruit
           Quality of ‘Sensation’ and ‘Tommy Atkins’ mango (Mangifera indica L.)
 Abdullah Al-Musabehi1, Khalid Al-Rohily1, Hassan Al-Sarhan1, Abdelaziz H. Abdelgadir1, Rashid Al-Obeed2, and Mongi Zekri3
                                              1Saudi Basic Industries Corporation, P.O. Box 42503, Riyadh 11551, Saudi Arabia
                                  2Plant  Production Dept., College of Foods and Agriculture, P.O. Box 2460, Riyadh 11451, Saudi Arabia
                                        3University of Florida, Hendry County Extension Office, P.O. Box 68, LaBelle, FL 33975, USA




Introduction
In Saudi Arabia, mango is the number one ranked fruit crop in the Jazan area and production has          Objective
been expanding rapidly there. ‘Sensation’ and ‘Tommy Atkins’ are the most popular mango cultivars        Evaluate the effect of urea, potassium sulfate, and SABIC compound (11-29-19)
and occupy the largest orchard areas in the newly reclaimed sandy soil. Most of these new orchards       fertilization on yield and fruit quality of mango trees in the Jazan area.
suffer from the scarcity of irrigation water, salinity, and poor soil fertility.
                                                                                                         Conclusions
Experimental Design                                                                                      Supplemental application of 1435 or 1978 g of urea and additional applications of 1000
A field study was carried out during 2008 and 2009 seasons on 6-7 year old ‘Sensation’ and ‘Tommy        or 1500 g of potassium sulfate to 2000 g of SABIC compound (11-29-19) per tree per
Atkins’ mango trees grown on sandy soil in a commercial grove at a spacing of 7 x 7 m. The               year produced the highest fruit yield and increased total soluble solids for both
experiment was a randomized complete block design with 4 treatments, 4 replications, and 3 trees per     cultivars. With increasing fertilization, average fruit weight and fruit size was reduced
plot. All trees were managed according to typical commercial practices for pest management and           for ‘Tommy Atkins’, but increased for ‘Sensation’.
were irrigated as needed using a bubbler irrigation system.

                                             Yield, soluble solids, fruit weight, and fruit size of ‘Tommy Atkins’ mango trees (ZP < 0.05)

                                                           Treatments             Yield      TSS       Fruit weight    Fruit size
                                                          (per tree per year)   (kg/tree)    (%)            (g)          (cm3)

                                                          2000 g (11-29-19)
                                                             348 g Urea          79.9 bz    12.9 c       609.85 a       611.7 a
                                                              0 g K2SO4

                                                          2000 g (11-29-19)
                                                             892 g Urea          79.6 b     15.5 b      600.80 ab      594.7 ab
                                                             500 g K2SO4

                                                          2000 g (11-29-19)
                                                             1435 g Urea         83.1 a     16.5 a      581.59 bc      578.9 bc
   Mango inflorescences setting fruit                       1000 g K2SO4

                                                          2000 g (11-29-19)
                                                             1978 g Urea         86.6 a     16.6 a       571.53 c       570.9 c                    Mango trees grown in Jazan, Saudi Arabia
                                                            1500 g K2SO4



                                                                    Experimental mango grove in Jazan, Saudi Arabia

								
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