STUDIES ON THE EFFECT OF DIFFERENT CROPPING SYSTEMS AND WEEDING INTERVALS ON THE WEED INFESTATION AND GRAIN YIELD OF SORGHUM G. SUDARSHAN REDDY REDDY VENKATESWARA REDDY S. M. Kondap Kondap A. R. RAO RAO K. BALASWAMY P. Chandrasekhar Rao Rao DOI: https://doi.org/10.28941/pjwsr.v1i1.24 PDF Published 1988-03-01 Issue Year 1988, Volume 1 , Issue 1 Section Articles