SHARMA, G. L., MAHAPATRA, B. S., SINGH, A. K., & PANDEY, B. M. (2013). Role of summer legumes on productivity of maize (Zea mays)- wheat (Triticum aestivum)cropping system on sandy-loam soil of western Uttar Pradesh. The Indian Journal of Agricultural Sciences, 68(6). https://epubs.icar.org.in/index.php/IJAgS/article/view/27568