2CIPLA Agricultural Research Division, Virgonagar (PO), Bangalore-560049.
Indian Institute of Horticultural Research, Bangalore-560080.
Present Address: 1Scientist S-3 (Agronomy) and Head, Division of Crop and Soil, Scienee, Central Potato Research Institute, Simla-171001 (H.P.)
Response of brinjal (Solarium melongena L.) to four moisture regimes and four nitrogen levels was studied during summer seasons of 1976 and 1977, at the Experiment Station, Hessaraghatta of the Indian Institute of Horticultural Research, Bangalore. Nitrogen fertilization and more frequent irrigation increased earliness in fruiting, fruit size and fruit yield. Irrigation at 80 per cent ASM with application of 150 kg N per ha resulted in the highest fruit yield (240 q/ha). The optimum levels of nitrogen fertilization were 138, 152, 99 and 101 kg per ha with irrigation at 80, 60, 40 and 20 per cent ASM respectively. The fertilizer use efficiency at optimum levels of nitrogen fertilization was 109, 81, 84, 49 kg yield per kg N with irrigation at 80, 60, 40 and 20 per cent ASM respectively. The corresponding net profit was Rs. 6886, 5404, 3657 and 2006 per ha.
