Wheat yield and uptake of N, P and K as affected by the application of nitrapyrin (Nitrification inhibitor)
2000
Abd El-Galil, A. (South Valley Univ., Sohag (Egypt). Faculty of Agriculture)
Addition of inhibitor to urea or ammonium sulfate resulted in significant increase in the yields of grain and straw. Combination of low rates of N and inhibitor resulted in 27.2 per cent yield increase using Urea and 29 per cent increase of ammonium sulfate. Applying N in one dose combined with inhibitor gave higher yield increases. The inhibitor increased wheat grain yield much more than straw yield, especially at low N rates, with higher rates the opposite was noticed. N, P and K uptake seemed to be affected with N-rate, dose and also the application of the inhibitor.
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