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随着人工造林规模的逐年扩大,幼林抚育的任务日益艰巨繁重,单靠人工锄草抚育,难以完成任务。形势要求人们找出一个经济、实用的化学除草方法。1990年江西省上饶地区林业局下达了“幼林施用草甘膦除草抚育试验”的技术推广课题,我们按计划当年进行了推广试验,取得了明显效果。一、试验地基本情况草甘膦除草抚育试验地设在弋阳县林科所(平地类型)、广丰县林科所(丘陵类型)、德兴市森林苗圃(山地类型)。海拨55～210m。土壤为红壤,pH4.7～5.7,土壤深度40～120cm。试验
With the gradual expansion of the scale of afforestation, the task of raising young forests is becoming increasingly arduous and arduous. It is difficult to accomplish the task solely by artificial weeding. The situation calls for people to find an economical and practical method of chemical weeding. In 1990, the Forestry Bureau of Shangrao, Jiangxi Province issued a technical promotion project of “weeding and weeding test of young glyphosate in young forests”. As planned, we conducted the popularization test and achieved remarkable results. First, the basic situation of the experiment Glyphosate weeding test located in Yiyang County Forestry Branch (plain type), Guangfeng County Forestry Branch (hilly type), Dexing City, forest nursery (mountain type). High-altitude 55 ~ 210m. Soil is red soil, pH 4.7 ~ 5.7, soil depth 40 ~ 120cm. test