A field experiment was conducted on sandy loam soil at Research Farm of SKUAST-J, Chatta, Jammu during the years 2006 and 2007 to study the effect of weed management and crop establishment methods on weeds and grain yield of rice as well as residual effect of treatments (applied to rice) on weeds and yield of wheat. There was severe competition between Echinochloa crusgalli and Echinochloa colona with rice and between broad leaf weeds and wheat. Phalaris minor infestation was lower during the experiment. Among weed management methods, maximum yield of rice ( 4256 kg/ha and 4393 kg/ha) during 2006 and 2007, respectively was recorded in the treatment where mechanical hoeing using conoweeder (at 15 and 30 DAT) was done during the first and second years of study. Fenoxaprop-p-ethyl (0.06 kg/ha, 20 DAT) + 1 HW at 30 DAT, metasulfuron methyl + chlorimuron ethyl (0.004 kg/ha, 20 DAT) + 1 HW at 30 DAT and fenoxaprop-p-ethyl (0.06 kg/ha, 20 DAT) and metasulfuron methyl + chlorimuron ethyl (Almix 0.004 kg/ha, 20 DAT) were the next best treatments. However, metasulfuron methyl + chlorimuron ethyl (0.004 kg/ha) was found to be more effective against broad leaf weeds and very little to sedges, hence failed to control major grassy weeds during the experiment. Among the establishment methods of rice, conventional and system of rice intensification (SRI) methods were at par with respect to grain and straw yield. The residual effect of treatments (applied to rice) was not well pronounced on weed population, weed dry matter accumulation by weeds and yield of wheat during both the years. Under wheat establishment methods, the two tillage systems did not produce significant variation with respect to total weed population, weed dry matter accumulation and grain yield. However, conventional tillage exhibited a marginal edge over zero tillage during both the years.