Author(s): R. NANDAN, V. SINGH, S. S. SINGH, K. K. HAZRA AND C. P. NATH

Abstract: Weeds growth and crop productivity were studied in rice-wheat cropping system under different tillage cum crop establishment practices (T&CE) and residue management treatment practices. The experiment was comprised of two residue management practices and four T&CE practices in a split plot design. Results revealed that zero-till dry seeded rice followed by zero tillage wheat (ZTDSR-ZT) recorded significantly higher density of total broadleaved and total weeds in 2013 and 2014 in rice. However in wheat crop, the ZTDSR–ZT system suppressed the winter season broad-leaved and total weeds effectively over other tillage practices. Crop residue retention in soil surface significantly reduced the weed density both in rice and wheat crops. The higher grain yield of rice and wheat crop was recorded in conservation tillage practices (ZTDSR–ZT) in both years over conventional tillage practices in rice and wheat crop.

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