摘要
田间药效试验表明,药后30 d,86%2,4-D二甲铵盐AS对猪殃殃、泽漆、荞麦蔓、藜的株防效分别为72.04%、94.92%、85.22%、95.92%,药后50d,对株防效分别达76.61%、97.73%、97.77%、98.54%,药后50d,鲜重效分别为72.76%、98.73%、97.49%、99.34%;株效、鲜重效都优于对照药剂72%2,4-D丁酯EC 540.0 ga.i./hm2处理,但处理间差异步显著。对春小麦安全,增产率在8%以上,在大田生产中具有推广价值。
When the 2,4 - D dimethylamine salt 86 % AS 1 was sprayed for 30 d , its control effect reached 72. 04 % ,94. 92 % ,85.22 % and 95.92 % respectively for Galium aparine L. , Euphorbia helioscopia L , Polygonum convolvulus L and Chenopodium album L. and its control effect were 76. 61% ,97.73 % ,97.77 % and 98. 54 % after 50d. When the drugs were used for 50 d , the control effects of 2,4 - D dimethyla mine salt 86 % AS on the fresh weight of Galium aparine L. , Euphorbia helioscopia L. ,Polygonum convolvulus L. and Chenopodium album L were 72.76 % ,98. 73 % ,97.49 % and 99. 34 % respectively, which are higher that in 2,4 - D butylate 72 % EC with the applied concentration of 540. 0g a. i. / hm2 but no significant differences among the five treatments. The yield increasing rate of its reached above 8 %. It did not affect spring wheat growth and it had the popularization value in the field production.
出处
《安徽农学通报》
2009年第1期154-155,共2页
Anhui Agricultural Science Bulletin
关键词
2
4-D二甲铵盐
春小麦
阔叶杂草
防效
2,4 - D dimethyla mine salt
spring wheat
broad leaf weed
control efficacy
