Nutrient uptake and fertilizer use efficiency of brinjal (Solanum melongena L.) as ifluenced by planting density, irrigation and fertigation levels under drip irrigation

The planting of 175-50x 50 cm showed significant variation with respect to N, P and K contents and their uptake by fruits, leaves and stem. Similar trend was observed with irrigation level I₁ (100 per cent ET^crop). The fertigation of 100 per cent RDF through drip recorded significantly superior values of N, P and K contents and their uptake in fruit, leaf and stem however, 100% RDF through soil application in combination with surface irrigation recorded relatively lower values. Maximum fertilizer use efficiency was recorded due to 80 per cent RDF through drip irrigation.