THE EFFECT OF DIFFERENT LEVELS FROM UREA AND SUPER PHOSPHATE FERTILIZERS IN SOME YIELD COMPONENTS OF WHEAT Tritium aestivum L.

Abstract

An experiment was carried out by using plastics pot in green house, at Kalar horticulture station / Sulaimani province in season growth (2007-2008). The aim of experiment was to determine the effect of different levels of Urea (0,0.20,0.40,0.80 gm /4kg soil in pot) these levels were equal to (zero,25,50,100 Kg urea/D) , and super phosphate (0,0.24,0.48 gm /4kg soil in pot) these levels were equal to (zero,30,60 Kg super phosphate/D), in some components of wheat yield of IBA (95) variety, cultivated on soil took from once region field. The components was studied is relative of yield, relative efficiency of fertilizer, number of spikelet/ spike, weight of seeds/ spike, weight of (1000 seeds), and weight of seeds / pot. This experiment was carried out by completely randomized design, by three replication. The results indicated increase of yields components, the components were: number of spikelet/ spikes, weight of seeds/ spike, weight of (1000 seeds) weight of seeds/ pot, and increase of relative efficiency of fertilizer, and decrease of relative of yields with increase of both fertilizers levels.