小麦田春季化学除草效果比较

摘要

为评价不同除草剂对春季小麦田杂草的防除效果,2012年进行了田间药效比较试验.结果表明,在春季防除禾本科杂草时,可用5%唑啉·炔草酯EC 1200~1500 g/hm2(制剂用量,下同),或15%炔草酯WP 450~525 g/hm2,或69 g/L精唑禾草灵EW 1800 g/hm2；在春季防除猪殃殃时,可用200 g/L氯氟吡氧乙酸EC 900~1050 g/hm2.以上各药剂的防除效果均在90%以上.%In order to evaluate the control effects of the different herbicides to wheat field weeds in spring, the field trials were carried out in 2012. The results showed that pinoxaden + clodinafop-propargyl 5% EC 1 200-1 500 g/hm2, clodinafop-propargyl 15% WP 450-525 g/hm2 or fenoxaprop-P-ethyl 69 g/L EW 1 800 g/hm2 could be used to control grass weeds. Galium aparine L. var. tenerum (Gren. et Godr.) Rchb. could be controlled with fluroxypyr 200 g/L EC at a dosage of 900-1 050 g/hm2. The control effects of all above herbicides were more than 90%.