Screening of soybean, Glycine max L. varieties for their suitability for intercropping with pigeonpea, Cajanus cajan

摘要

The central part of the country covering the regions of Madhya Pradesh, Maharashtra and Rajasthan accounts for almost 97% of total area under soybean. Crop diversification appears to be a major strategy to sustain the productivity of this region and intercropping with crops suitable for the area offers an excellent opportunity for the same. Traditionally, grown pigeonpea is documented to offer yield stability and improved total production when grown with soybean as a companion crop (Prasad et al., 1997). Adoption of this system also ensures adequate yield of at least one of the crops even under aberrant weather conditions (Rao and Willey, 1980). In view of meager information available on biological efficiency and varietal compatibility, the presentinvestigation was undertaken to evaluate the productivity. Competitive indices, monetary advantage and energy balance of soybean varieties in soybean-based intercropping with pigeonpea.