PJB-2011-262
SUSTAINING RICE-WHEAT SYSTEM THROUGH MANAGEMENT OF LEGUMES II. EFFECT OF GREEN MANURE LEGUMES AND N FERTILIZER ON WHEAT YIELD
ZAHIR SHAH1*, S. RASHID AHMAD2, HIDAYAT UR RAHMAN3 AND M.Z. SHAH
Abstract
This study was undertaken to assess the effect of 6 green manure legumes viz., mungbean (Vigna radiata), cowpea (Vigna unguiculata), soybean (Glycine max), sesbania (Sesbania rostrata), pigeonpea (Cajanus cajan) and guar (Cyamopsis tetragonoloba) and N fertilizer on wheat yield in rice-wheat system for three years (2001/02-2003/04) at Agriculture Research Institute, Tarnab, Peshawar, Pakistan. The grain, straw and N yields of wheat were significantly greater in the green manure legumes than in the fallow-based rice-wheat rotation during all the three years. The average improvement gained from the green manure legumes relative to fallow-based cropping, was 18.1% for grain yield
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