经试验,2,4-滴丁酯防除麦田杂草施用适期为小麦穗分化生长锥伸长期至单棱期,和小花分化期至雌雄蕊分化期两个阶段(在我地时期一般为3月5—20日,4月5—15日)。小麦穗分化二棱中、后期施用2.4—滴丁酯麦田除草对小麦为最不安全阶段。此期药剂处理易引起麦穗畸形,单穗粒数减少,产量降低,施用2,4—滴丁酯麦田除草应避开这一时期。 After testing, 2,4-D butyl ester to control weeds in wheat field suitable for the growth of wheat spike growth cone to single-stage, and floret differentiation stage to the two stages of pistils (in my time is generally 3 May 5-20, April 5-15). Wheat ear differentiation two edges, the late application of 2.4-D butyl ester wheat weeding on wheat is the most unsafe stage. This period of drug treatment can easily lead to malformations of wheat, reduce the number of grains per spike, reduce the yield, use 2,4-D butylate wheat field weeding should avoid this period.