Integrated Effect of Phosphorus and Zinc on Wheat Crop

Field experiment on “interactive effect of phosphorus and zinc on wheat crop” was conducted at New Developmental farm, the University of Agriculture Peshawar, Pakistan during 2012-13. Four zinc levels (0, 5, 10 and 15 kg ha ) were applied to plots with three different levels of phosphorus (45, 90 and 135 kg ha ).The 1 1 experiment was conducted in 2 factorial contrast randomized complete block design (RCBD) having three replications. Zn application had significantly increased wheat spike length (10.78cm), 1000 grains weight (49.36g) total dry matter (8200kg ha ) and grain yield (4426kg ha ) in the plots which were treated with 10 kg 1 1 Zn ha , while the maximum straw yield (4000 kg ha ) was recorded at 5 kg Zn ha . Applied phosphorus at 1 1 1 the rate of 90 kg P O ha had significantly increased plant height (93.63cm), 1000 grains weight (46.80g), total 2 5 1 dry matter (8113kg ha ), grain yield (4101.1kg ha ) and straw yield (4012kg ha ). These results indicated that 1 1 1 agronomic characteristics of wheat crop showed more significant response in plots which were treated with 90 kg P ha along with 10 kg Zn ha .Thus it was suggested that 90 kg P O along with 10 kg Zn ha would be 1 1 1 2 5 useful under the similar agro-climatic conditions and soil properties for obtaining more wheat yield.