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PJB-2010-380
OPTIMUM IRRIGATION AND INTEGRATED NUTRITION IMPROVES THE CROP GROWTH AND NET ASSIMILATION RATE OF COTTON (GOSSYPUM HIRSUTUM L.)
Abstract
The objective was to find out the impact of different irrigation schedules and integrated plant nutrition levels on the seasonal crop growth rate (CGR) and net assimilation rate (NAR) of cotton. The experiments were conducted using RCBD with split plot arrangement. The treatments were four irrigation schedules (main plot) i.e. six irrigations (I1), three irrigations (I2), irrigation at 25 mm deficit (I3) and irrigation at 50 mm deficit (I4), and seven integrated nutrition levels (sub plot) viz. control (N0), 75-37.5-37.5 kg N-P2O5-K2O ha-1 (N1), 75-37.5-37.5 kg N-P2O5-K2O ha-1 + FYM @ 20 t ha-1 (N2), 75-37.5-37.5 kg N-P2O5-K2O ha-1 + wheat straw @ 5 t ha-1 (N3)
