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Jat, R A and Ahlawat, I P S (2010) Effect of organic manure and sulphur fertilization in pigeonpea (Cajanus cajan) + groundnut (Arachis hypogaea) intercropping system. Indian Journal of Agronomy, 55 (4). pp. 276-281. ISSN 0974-4460
Ali, M and Mishra, J P and Ahlawat, I P S and Kumar, R and Chauhan, Y S (1998) Effective management of legumes for maximizing biological nitrogen fixation and other benefits. In: Residual effects of legumes in rice and wheat cropping systems of the Indo-Gangetic plain: proceedings of the Workshop, 26-28 August 1998, Patancheru, India.