前 言 林业育苗应用化学除草是苗圃生产中的一项新技术。筛选出一批适合于林业苗圃使用的化学除草剂,并了解掌握它的适合浓度和使用方法,乃是目前当务之急。实践证明,应用化学除草,是消灭圃地杂草,提高劳动效率,减轻劳动强度,降低育苗成本,提高苗木质量,实现苗圃机械化、系列化的重要措施。我场于七九年春,开始采用部份除草剂在苗圃进行除草试验,取得了一定成效。 Foreword Forestry nursery application of chemical weeding is nursery production in a new technology. Screening out a number of chemical herbicides suitable for use in forestry nurseries and understanding their suitability for concentration and use is a top priority. Practice has proved that the application of chemical weeding is to eliminate nursery weeds, improve labor efficiency, reduce labor intensity, reduce nursery costs, improve seedling quality, nursery mechanization, serialization of important measures. In the spring of 1979, I began to use some herbicides to conduct weeding tests in nurseries and achieved some success.