Working Document Series Open Access Pigeon pea-Groundnut Intercrop Maize Rotation Cropping System: A Tool for Improving Maize Production in Malawi J. Mrema · J.J. Msaky · A.T. Phiri · G.Y.K. Phiri A two year study to investigate how to optimally utilize applied mineral nutrients by maize grown in rotation with pigeon peagroundnut intercrop is under way at Chitedze Agricultural Research Station (S 130 59’ 23.2", E0330 38’ 36.8"). An … RUF-32227 2012 CC BY 4.0 14 May 2014