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略述水稻肥床旱育苗床发生的 2 6种杂草及主要种群 ,研究了 2 0 %丁恶乳油等 3种化学除草剂对水稻肥床旱育苗床杂草防除效果及对水稻的安全性 ,提出了用 2 0 %丁恶乳油 13 5 0～ 2 2 5 0ml/hm2 防除水稻肥床旱育苗床杂草的最佳使用技术及生产实践中需要注意的问题
The twenty-six kinds of weeds and their main populations in the dryland seedbed of rice paddy were summarized. The effects of three kinds of chemical herbicides, such as 20% butyric acid, on the weed control effect and their safety on rice seedbed were studied , Put forward the best using technology of 20% butanethiol 105 ~ 250ml / hm2 to control weeds in the drybed of nursery rice, and the problems needing attention in production practice