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据2000年在单季直播稻田上调查,平均每平方米有恶性杂草千金子0.6株,个别严重田块达15.4株,不但阻碍着直播稻面积的进一步扩大,还直接影响直播稻的产量。宁波市江北区从1997 年开始。引进新农药进行防治试验与示范,现基本摸索出了一套直播稻田恶性杂草千金子的防治技术。首先要掌握在播种后2～4天内,选用40%直播净(丙·苄,WP,杭州天-农化厂生产)45～60克/亩(1亩
According to the survey conducted on single-season direct-seeded rice fields in 2000, the average number of weeds weighed per square meter was 0.6, and that of some serious fields reached 15.4. This not only hindered the further expansion of direct seeding rice but also directly affected the production of direct seeding rice. Ningbo Jiangbei District since 1997. The introduction of new pesticides for prevention and control experiments and demonstrations, we now basically found out a set of live weeds in the control of thousands of gold seedlings prevention and control technology. First of all, we need to master 45 ~ 60 g / mu (1 mu) of 40% live broadcast net (Prop, Benzyl, WP,