快灭灵40DF防除小麦田杂草的效果及其对小麦的安全性  

Effects of Weed Control and Security of Wheat in Wheat Field With Affinity

作　　者：李永丰[1,2,3,4] 李宜慰 周文春[1,2,3,4] 娄群峰 朱普平[1,2,3,4] 周恒昌[1,2,3,4] 刘正道 

机构地区：[1]江苏省农科院现代化所 [2]江苏省农科院粮食所 [3]江苏省仪征市农资公司 [4]江苏省江宁县农业局

出　　处：《江西农业大学学报》1999年第1期37-41,共5页Acta Agriculturae Universitatis Jiangxiensis

基　　金：国家科技部重点攻关专题

摘　　要：快灭灵４０ＤＦ是美国ＦＭＣ公司研制的新型禾谷类作物田除草剂。在小麦４～６叶期，喷施快灭灵４０ＤＦ２２．５ｇ／ｈｍ２对麦田新的优势阔叶草种（野老鹳草、泽漆）具有较好的防效，对大巢菜和繁缕的防效为８０％～８５％，但是对禾本科杂草无效；快灭灵４０ＤＦ与异丙隆５０ＷＰ混配使用，可以提高含禾本科杂草、繁缕和大巢菜的总草防效，小麦增产显著；快灭灵４０ＤＦ与甲黄隆或者巨星混配后，对阔叶草（野老鹳草、泽漆、大巢菜和繁缕等）的防效达９０％以上；施用快灭灵４０ＤＦ４５～６７．５ｇ／ｈｍ２，小麦叶片出现白色斑点中毒症状，但不影响小麦产量。Affinity is a new herbicide developed by American FMC for use in grain crop fields. Experiments were conducted in 1996～1998 to evaluate the effects of affinity on the weed control and the security of wheat. The experiment results showed that many major broad-leaved weeds such as G. aparine, V. didyma Tenore, C. bursa-pastoris, G. carolinianum, E. helioscopia, S. nedua and V. sativa L. were effectively controlled by application of affinity at 22.5 g/hm 2 at four to six-leaf stage of wheat and wheat yield increased. Wheat were injured from affinity at 45～67.5g/hm 2 but yields were not reduced. Beckmannia syzigachne, V. sativa L. and S. nedua control with affinity increased up to more than 90% with addition of isoproturon respectively and wheat yield increased effectively. Affinity with methsulfuron-methy at 5.25g/hm 2 or express at 9g/hm 2 raised more S. nedua and V. sativa L. control than affinity applied alone.

关 键 词：快灭灵 小麦 杂草 防效 除草剂 

分 类 号：S482.4[农业科学—农药学] S512.105.2[农业科学—植物保护]