禾大壮又名草达灭,系美国施多福公司生产的一种高效灭稗除草剂,根据我县几年来试验及大面积示范推广情况,禾大壮已深受广大社员的欢迎。 一、露地育秧田的施用 秧板平整后均匀喷雾,耙入土中耱平,次日播种(浸种三天),品种为宁系62—3,施用时间为1982年4月20日,不同剂量其效果如下: Wo Da Zhuang, also known as grass up off, the Department of the United States Shi Duofu company produced a high efficacy of barnyard grass herbicide, according to my county a few years to test and large-scale demonstration and promotion of the situation, Wo strong has been welcomed by the majority of members. First, the field seedling transplanting seedlings planted uniform spraying, Harrow into the soil Ping, sowing the next day (Soaking three days), the type of rather lines 62-3, the application time for the April 20, 1982, at different doses of its The effect is as follows: