DefinePK

Abstract

As increasing fertilizer use efficiency would be beneficial to low value crop producer and friendly environment, a field experiment was thus conducted to assess the nutritional requirements of wheat variety KT-2000 at Barani Agricultural Research Station (BARS), Kohat during 2011-12 crop season. Wheat variety KT-2000 was planted in field condition under varied combination of NPK using randomized complete block (RCB) design with three replications. Data were recorded on days to heading, maturity, plant height, productive tillers m-2 and grain yield. Analysis of variance showed significant effect of NPK treatments on all the traits studied except plant height. Maximum values for economically important traits viz. productive tillers m-2 and grain yield were observed at maximum level of NPK (90-60-60). Regression analysis for all the traits confirmed the linear relationship of NPK fertilization with yield and yield associated traits. The highest grain yield of 3800 kg ha-1 was recorded by applying NPK @ 90-60-60 kg ha-1 followed by 3767 and 3600 kg ha-1 obtained by applying NPK @ 60-60-30 and 60-30-0 kg ha-1 respectively. Therefore, NPK @ 90-60-60 could be recommended for wheat variety KT-2000 to obtain high grain yield.
Keywords: Fertilizer application; NPK; Wheat; Grain yield
http://dx.doi.org/10.19045/bspab.2015.44007