黑龙江省谷、糜田苗后除草剂对窄叶杂草的除草效果及安全性评价

Control Effect and Safety Evaluation of Post Seedling Herbicides on Narrow Leaf Weeds in Setaria italica and Panicum miliaceum L.Fields in Heilongjiang Province

为指导谷、糜田化学除草、节本增收,以4种化学除草剂和4个谷、糜品种为试验材料,开展田间药效试验。结果表明:4%啶磺草胺可分散油悬浮剂和3.6%二磺·甲碘隆水分散粒剂均不宜用于谷子田苗后化学除草,但在糜子田可考虑使用3.6%二磺·甲碘隆水分散粒剂降低除草成本;甲氧咪草烟配合抗性谷子的除草技术具有明显优势,是解决黑龙江省谷、糜田除草的潜在方法。

In order to guide chemical weeding and save cost and increase income,herbicides and 4 varieties of Setaria italica and Panicum miliaceum L.was used as test materials to carry out field efficacy test.The results showed that both 4%sulfamethoxamide dispersible oil suspension and 3.6%disulfonate methyliodolone water dispersible granule were not suitable for chemical weeding after seedling in millet field,but 3.6%disulfonate methyliodolone water dispersible granule could be considered to reduce weeding cost in millet field;The weeding technology of methoxymidazol combined with resistant millet has obvious advantages,which is a potential method to control weeds in Setaria italica and Panicum miliaceum L.fields in Heilongjiang Province.