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Legume Research

Influence of land configuration on rain water use efficiency, yield and economics of cowpea (Vigna unguiculata L.) in maize-cowpea sequence cropping under rainfed condition of Northern Transitional Zone

DOI: 10.18805/LR-3985    | Article Id: LR-3985 | Page : 211-215
Citation :- Influence of land configuration on rain water use efficiency, yield and economics of cowpea (Vigna unguiculata L.) in maize-cowpea sequence cropping under rainfed condition of Northern Transitional Zone.Legume Research.2019.(42):211-215
Hanamant M. Halli and S.S. Angadi hmhagri@gmail.com
Address : Department of Agronomy, University of Agricultural Sciences, Dharwad-580 005, Karnataka, India.
Submitted Date : 4-01-2018
Accepted Date : 13-03-2018
First Online:

Abstract

The main aim of land configurations is in situ conservation of soil moisture by increasing the opportunity time for augmented water use efficiency and drain out excess water. The field study was conducted for two years under rainfed conditions of Dharwad on residual soil moisture and fertility. Cowpea produced higher grain yield (13.4 q ha-1), haulm yield (25.6 q ha-1) and harvest index (34.4 %) with Broad Bed and Furrow (BBF) method of planting. Similarly, BBF method resulted in higher soil moisture content (32.09 % at 40 DAS) and rain water use efficiency (RWUE) of 5.96 kg ha-mm-1. The RWUE had a significant and highly positive correlation with soil moisture at 40 and 55 DAS (with r value of r=0.94** and r=0.96**, respectively). BBF method of planting also registered higher gross return (Rs.42725 ha-1), net return (¹  27515 ha-1) and benefit-cost ratio (2.82). Cowpea can be grown successfully after summer maize on existing BBF configuration for higher yield and rain water use efficiency.  

Keywords

Broad bed and furrow Cowpea Planting methods Rain water use efficiency Soil moisture.

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