A series of experiments was carried out at Students Farm, Sindh Agriculture University, Tandojam to evaluate the effect of NPK, micronutrients and N-placement on the growth and yield of sunflower during 2005-2006. The sunflower cv. HO-1 was studied under 7 different NPK levels and placement methods (0-0-0 NPK kg ha, 6030-30 NPK kg ha (N as broadcast), 60-30-30 NPK kg ha (N as fertigation), 90-4...

Non-optimal application of nitrogen (N) fertilizer in cotton (Gossypium hirsutum L.) production systems often results from a producer’s uncertainty predicting the N rate that ensures maximum economic return. Residual soil nitrate-N (NO3-N) is also unaccounted for management decisions. In this study, lint yield and profitability two cultivars (FiberMax FM 958 Deltapine DP 1646 B2XF) were compare...