氟磺·稀禾啶乳油防除大豆田杂草试验

Test for controling weeds to soybean by Fomesafen and Sethoxydi

对氟磺.稀禾啶乳油对大豆田杂草的除草效果及安全性进行试验。结果表明:20.8%的氟磺.稀禾啶乳油能有效防除大豆田的稗草、藜、苋、苘麻,防效为90.3%以上,对刺菜的防效为85%左右;在试验剂量范围内对大豆安全,且增产作用明显。

For testing the prevention and control effect on weeds and security on soybean, field examination of Fomesafen and Sethoxydi was conducted. The results showed that the prevention effect was over 90.3 % on eontroling Echinochloa crusgalli, goosefoot, amaranth and piemarker by 20.8 % Fomesafen and Sethoxydi, by whieh the controlling effect on Herba cirsii was about 85 %. It was completely safe to soybean in the testing doses range, furthermore, the effect of increasing production was obvious.