Examining allelopathic effect of fresh mikania(mikaniamicrantha)addition to soil on cyperaceous weeds in kharif season
EXAMINING ALLELOPATHIC EFFECT OF FRESH MIKANIA ( Mikania m icrantha ) ADDITION TO SOIL ON CYPEROUS WEEDS IN KHARIF SEASON M.J. Ullah*, J. Rahman, M. Yeasmin, K. Fatima, M. Quamruzzaman *Corresponding author, E-mail: Jafarullahsau@gmail.com Abstract A study was carried out at the weed museum of Sher-e-Bangla Agricultural University, Dhaka to evaluate the allelopathic effect of mikania on Cyperaceous weeds during kharif season of 2013. Soil from the wheat field was collected, sun dried and mixed with mikania fresh plants at 6 different rates of mikania application (T 0 = no mikania, T 2 = 2%, T 4 = 4%, T 6 = 6%, T 8 = 8% and T 10 = 10%, all of sundried soil by weight) and allowed the weed seeds within the soil to germinate and grow in burried (into soil of the weed museum) earthen pots. Cyperus rotundus , Cyperus esculentus and Fymbristylis miliacea comprised the cyperaceous weed...