阔叶净防除麦田杂草技术

通过多种新型除草剂田间药效比较试验,证明阔叶净是麦田除草剂替代2.4—D丁酯的理想品种,同时证实河北宣化农药厂生产的10％阔叶净可湿性粉剂对麦田杂草的控制作用及使用后的增产效果不亚于美国杜邦公司的75％阔叶净干燥悬浮剂(巨星)。使用10％阔叶净可湿性粉剂防治麦田杂草的最佳施药期为小麦起身至拔节初期,适宜剂量为每亩6～10g。

Applicated Technique of Thibenuron Methyl for Weed Controlling in Wheat Field

Through comparing wheat field trial of some new herbicides, it was established that thibenuron methyl was an ideal alternative agent of 2,4—D butyl ester for weed controlling in wheat field. At the same time it was shown that the 10% WP thibenuron methyl, a product of Xuan-Hua Pesticide Factory of Hebei Province, had the same efficiency for weed controlling in wheat field and for raising the yields as the Express TM, 75% dry suspension of thibenuron methyl from DU Pont, USA. The best application period of 10% WP thibenuron methyl was at the beginning of elongation stage of wheat and the proper dosage 6～10 g/mu.