Effect of Farmyard Manure (FYM) on Growth and Development of New Emerging Broadleaf Weed MalvaneglectaWallr.

Scarified seeds of M. neglecta resulted in significantly higher weed emergence as compared to unscarified seeds within different FYM levels. Maximum weed emergence was observed in plots where 20 t/ha FYM was added, whereas least weed emergence was recorded in control plots (where no FYM was added). Weed plant height and number of branches produced per weed plant differed significantly between scarified and unscarified seed conditions at different levels of FYM. An increasing trend in these growth parameters of weed was observed with increase in levels of FYM under scarified and unscarified seed conditions during both years of study. Dry matter accumulation by weed increased with increase in level of FYM added. Maximum weed dry matter accumulation of 604.1 g and 281.2 g/m2 was observed where FYM 15 t/ha was added whereas least dry matter accumulation of 326.6 g and 150.5 g/m2 was obtained in control plots under scarified conditions during 2004-05 and 2005-06, respectively.