Effect of deficit irrigation practices on growth and yield of transplanted rice (Oryza sativa L.)

Abstract

A field trial was conducted on transplanted rice on clay soils of the Agricultural College Farm, Bapatla to study the effect of growth and yield of rice under deficit irrigation during kharif, 2017-18. The experiment was laid out in randomized block design with seven treatments and three replications. Continuous submergence of 5 cm throughout the growth period (T1) resulted in increasing growth, yield attributes and yield of transplanted rice as compared to deficit irrigation treatments; however, AWD irrigation with 5 cm submergence till 5 cm depth of water receded below ground level in field water tubes (T6) was found to be suitable without considerable reduction in yield simultaneously reducing the water use by 26 % compared to that of continuous submergence.