Response of Chilli to Water and Nitrogen under Drip and Check-basin Methods of Irrigation

Abstract

The effects of drip fertigation (l00. 75 and 500% of recommended N. 180 kg ha^-1) and check-basin irrigation at 180 kg N ha^-1 for chilli in respect of yield. water saving and water use efficiency (WUE) were studied on loamy sand soil. The highest yield (2.94 Mg ha^-1) was recorded under drip fertigation at 180 kg N ha^-1. However. conventional irrigation with 180 kg N ha^-1 gave equivalent yield (1.94 Mg ha^-1) to drip fertigation at 90 kg N ha^-1 (2.06 Mg ha^-1 Two year study revealed that drip fertigation at 180 kg N ha^-1 provided 400/r saving in water and 52% higher yield over check-basin method of irrigation. The WUE was the highest in drip fertigation at 180 kg N ha^-1 (5.17 kg ha^-1 mm^-1) followed by drip fertigation at 135 kg N ha^-1 (4.90 kg ha^-1 mm^-1).