Ecology, Environment and Conservation Paper

COMBINED INFLUENCE OF IRRIGATION LEVELS AND NITROGEN APPLICATION ON YIELD OF SWEET CORN HYBRID

Sharana Basava, K.B. Sunitha Devi, C. Sudharshana and G. Uma

Abstract

The experiment was conducted at in Maize Research Station, Agricultural Research Institute, Rajendra nagar, Hyderabad during rabi 2011-2012. The experiment was laid out in randomized block design with factorial concept and replicated thrice with twenty treatment combinations consisting of 5 irrigation treatments and 4 nitrogen applications and results showed that, Scheduling of drip irrigation at 100% E pan produced higher growth, yield attributes and in turn green cob yield (12.23 t ha-1) and fodder yield of (28.93 t ha-1) of sweet corn which was 58 % higher green cob yield over that obtained with surface irrigation at 1.0 IW/CPE. Application of N @ 200 kg ha-1 through fertigation achieved maximum green cob yield (11.65 t ha-1) and fodder yield (25.71 t ha-1).