河北省谷田杂草综合防控技术研究

Study on Integrated Technique for Prevention and Control of Weeds in the Millet Field of Hebei Province

春播谷田杂草发生有3个峰期,夏播谷田杂草发生仅1个峰期。综合防控技术方案为:44%单嘧.扑灭WP的最佳剂量为1 800 g/hm2,播后苗前进行土壤处理;整地要平整、紧实;土壤含水量要求达到15%;药后不喷灌,或避开有中到大雨的天气用药。这样药效持续期在45 d以上,能有效控制谷田杂草危害,确保谷子安全生长。

Occurrence of weed in millet spring sowing field presents three peaks but only one peak in the summer sowing field.Technical scheme for integrated prevention and control of weed includes that the best dosage of monosulfuron·propazine 44% WP is 1 800 g/hm2 for soil treatment after sowing but before emergence,and it needs totillage tightly and levelly,15% of soil moisture capacity,to avoid sprinkle or moderate and heavy rain after herbicide spurting,the effective duration of herbicides can keep to more than 45 days for effective control of weeds in millet field and ensure millet to grow safely.