黑龙江省春季气温低 ,水稻插秧田返青较慢 ,形成弱苗或小苗 ,插秧后施药易造成药害影响水稻产量。因此 ,黑龙江垦区目前采用“两次施药”(即插前 3～ 7d、插后 15～ 2 0 d施药 ) ,安全性高药效好 ,但同时也增加了成本。10 %片净则很好地解决了这一问题 ,10 %片净剂型是片剂 ,它 Heilongjiang Province in spring low temperature, rice transplanting field greening slower, the formation of weak seedlings or seedlings, transplanting spraying easily lead to phytotoxicity affect rice yield. Therefore, Heilongjiang reclamation area is currently using “twice application” (that is, 3 ~ 7d before insertion, 15 ~ 20d after the injection), high safety and good efficacy, but also increased costs. A 10% tablet is a good solution to this problem, and 10% tablets are tablets