Optimization of irrigation water and nitrogen to cotton through drip irrigation system (Gossypium Species)

Abstract

A field experiment were carried out during 1993-94 and 1994-95 at Marathwada Agricultural University, Parbhani. In the trial effect of planting patterns and irrigation schedules through drip system was tested, and in the second trial nitrogen requirement of cotton (Gossypium sp.) through drip irrigation was studied on Vertisols. Seed cotton yield was not influenced significantly by the planting patterns during both the years. Irrigation at 0.8 and 1.0 ETC was at par and proved significantly superior to 0.4 and 0.6 ETC depth in influencing seed cotton yield. Application of 100 kg Nlha through drip recorded significantly highe~ seed cotton yield over rest of treatments including its soil applicatiors at the same rate. Higher N use efficiency was observed with drip than soil application methods.