Control Of Weeds With Different Herbicides In Silage Maize B. Uysal, I. Kadioglu
Igdır University, Faculty of Agriculture, Plant Protection Department, Igdır-Turkey badel.uysal@igdir.edu.tr
Silage maize production increases along with increasing indoor livestock activities in Turkey. Weeds reduce yield and quality in silage maize. Field experiments were conducted in the Tokat and Igdir provinces in 2010 and 2011 in order to find out effect of herbicides on weeds in maize for silage. Maize planted in Tokat on 10/05/2010 and in Iğdır on 29/05/2011. Herbicides, which were rimsulfuron (25% g/l a.i.), nicosulfuron (40% g/l a.i.) and foramsulfuron + iodosulfuron-methylsodium + isoxadifenethyl (30%+1%+30% ml a.i.), were applied in Tokat on 16/06/2010 and in Iğdır on 21/07/2011. Three rates of herbicides were applied, which were recommended rate for grain maize, its half and double rates. Main weed species were Abutilon theophrastii Medik, Amaranthus retroflexus L., Capsicum annuum L., Lepidium sativum L., Lolium perenne L., Sinapis arvensis L., Chenopodium albüm L., Convolvulus arvensis L., Sorghum halepense L., Portulaca oleracea. Applications were evaluated 7, 14 and 28 days after application. Recommended rate and double rate was effective enough on all weeds given with control of between 90% and 100%. They caused higher maize yield than weedy control half rate application which did not give weed control enough.
