بررسی امکان محلول پاشی توام باریک برگ کش های کاربردی در مزارع گندم با کودهای ریزمغذی کامل

In order to investigate the antagonistic and synergistic effects and the possibility of tank-mixture of some important grass-killer herbicides and micronutrient fertilizers in wheat field an experiment was conducted in randomized complete block design with two-factors during 2009-2010 in Sharekord Agricultural Research Centers with four replications. The first factor consisted of four levels of herbicides including clodinafop-propargyl at 0.8 lit.ha-1, pinoxaden at 450 ml.ha-1, diclofop-methyl at 2.5 lit.ha-1 and Difenzoquat at 4 lit.ha-1 as commercial ingredient. The second factor consisted of five levels of micronutrients including complete fertilizer "Micro-gyah" containing micronutrients Fe, Zn, Mn, Cu (EDTA), B, Mo at 1.5 kg.ha-1, complete fertilizer "Micro-starter" containing NPK10-52-10, F, Zn , Mn, Cu (EDTA CHELATE), B, and Mo at rate 0.4 % (v/v), complete fertilizer "High-Potass" containing NPK12-12-36, Fe, Zn, Mn, Cu (EDTA CHELATE), B and Mo, complete fertilizer "Micro-Sabz" containing NPK20-20-20, Fe, Zn , Mn, Cu (EDTA CHELATE), B, and Mo and control without fertilizer. The fertilizers and herbicides were sprayed in tank-mixture in tilleing stage of wheat. The results showed that among the herbicides that were applied in the present study, the efficacy of clodinafop-propargyl and pinoxaden to control grass weeds was partially better than diclofop-methyl and difenzoquat In Sharekord applied fertilizers had no negative effects on efficacy of the four herbicides. Therefore, tank mixture of fertilizers and herbicides used in the present study is possible in Shahrekord and no significant different was observed between micro-nutrients treatments for grain yields. Key Words: Clodinafop-propargyl, Pinoxaden, diclofop-methyl, difenzoquat, yield