IJEP 42(10): 1276-1280 : Vol. 42 Issue. 10 (October 2022)
Annamalai University, Department of Civil Engineering, FEAT, Annamalaia Nagar – 608 002, Tamil Nadu, India
Abstract
A suitable cropping pattern and irrigation strategy are essential for optimizing winter paddy yield and water use efficiency (WUE). The study aimed to evaluate the impact of cropping pattern and irrigation frequency on grain yield and WUE of winter paddy. During the 2018-2019 and 2019-2020 winter paddy growing seasons in the Vellar river basin at Cuddalore, the effects of cropping patterns and irrigation frequencies were determined on tiller number, paddy grain yield and WUE. The two cropping patterns tested were wide-precision and conventional-cultivation. Each cropping pattern had three irrigation regimes: irrigation (120 mm) at the jointing stage; irrigation (60 mm) at both the jointing and heading stages and irrigation (40 mm) at the jointing, heading, and milking stages. In our study, tiller number was significantly higher in the wide-precision cropping pattern than in the conventional-cultivation cropping pattern.
Keywords
Water use efficiency, Cropping pattern, Yield, Irrigation, Paddy, Cuddalore district, Water
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