刺槐、紫穗槐是辽西地区荒山、沟壑造林的先锋树种。为提高苗木质量,节省育苗费用,一九七九年我们进行了“两槐”育苗应用杀草安除草试验。 1、试验的药剂: 试验中我们应用的是西丰县农药厂生产的60％杀草安乳油,为触杀型芽前除草剂。可杀死萌芽期一年生单子叶和部分双子叶杂草,残效期15—20天。 2、试验的时间及方法: 试验小区五月上旬整地,五月十九日播种,当时平均气温19.7℃,5cm表土温度 Robinia pseudoacacia and Amorpha fruticosa are the pioneer tree species for afforestation in the western Liaoning Province. In order to improve the quality of nursery stock and save the cost of nursery, in 1979 we carried out “two locust” nursery herbicide application weeding test. 1, the test of the agent: the test we applied is the Xifeng County Pesticide Factory production of 60% EC grass cream, as the contact type pre-emergence herbicide. Can kill infested single annual monocotyledons and some dicotyledons, residual validity 15-20 days. 2, the test time and method: The trial plot site preparation in early May, May 19 sowing, when the average temperature of 19.7 ℃, 5cm topsoil temperature