Efficiency of Some Chelated Fertilizers Sources of Zinc in the Growth and Production of Cucumber Under Protected Farming Conditions
ANBAR JOURNAL OF AGRICULTURAL SCIENCES,
2013, Volume 11, Issue 2, Pages 195-209
AbstractA field experiment was conducted to study the efficiency of chelated zinc fertilizers produced from the reaction of Humic and Humic +Fulvic extracted from corn cubs and wheat straw with zinc sulphate added as zinc Humate (Zn-HAz) and Humate and fulvat zinc (Zn–HA +FAz) extracted from corn cubs, Zinc Humat (Zn –HAw ) ,zinc humat and fulvat (Zn–HA+FAw) extracted from wheat straw. zinc was also added as Zn–DTPA and ZnSO4.7H2O. All sources were sprayed on the green part (A1) at a level of 2 Kg Zn.ha-1 and 10 kgZn.ha-1 when added to soil (A2) and half these amount added to green part and to soil (A3).
Results showed that sources of zinc has significantly increasing cucumber yield. Zn-HA+FAz was out starting in the total yield, number of fruits and Phosphorus and Zinc content. in leaves with the an increase of 54.44%, 68.51%, 42.89% and 312.30% respectively compared to control. mineral zinc source (ZnSO4.7H2O) has achieved an increase of 32.22%, 35.07%, 13.921% and 151.97% of the parameters respectively compared to control . Zn-HA+FA extracted from wheat straw has achieved highest content of N and K in leaves with an increase of 80.78%, and 79.16% in comparison with the control treatment
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