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在山区大面积毛竹林中,普遍生长着乔、灌木,藤本植物和一年生、多年生杂草,与竹林争地夺肥,严重影响了竹子产量和产值的提高。用传统劈山方法抚育,虽是彻底清除树蔸杂草的好办法,但投入的工本较大,竹山多的农户承受不了。而且陡坡挖山容易引起水土流失。因此,在毛竹山上推广化学除草,对进一步提高抚育水平,减轻竹农的劳力和资金负担,增加竹子和竹笋收入都有重要意义。在毛竹山上使用“农达”除草剂,效果优于其他除草剂,据我站1994年8月底喷药试验,防除一年生和多年生杂草的防除率为88.8%;防除乔、灌木和藤本植物的防除率为79.2%,平均防除率达到84.7%。能有效地根除枫香、合欢、白栎、杜鹃、化香、橡树等20多
In the large area of mountainous bamboo groves, the common growth of Qiao, shrubs, lianas and annuals, perennial weeds, fight against bamboo fields compete for fat, seriously affected the bamboo yield and output increase. It is a good way to completely remove the trees and weeds with the traditional method of hill-cutting. However, the cost of the planting is larger and the farmers in the area can not afford it. And steep slopes easily lead to soil erosion. Therefore, popularizing chemical weeding on Moso Mountain is of great significance to further raising the level of tending, alleviating the labor and financial burden of bamboo farmers and increasing the income of bamboo and bamboo shoots. The use of “Nongda” herbicide on Moso Mountain has proved to be more effective than other herbicides. According to our station’s spraying test at the end of August 1994, the control rate of annual and perennial weeds was 88.8% The prevention and cure rate was 79.2% and the average prevention and cure rate reached 84.7%. Can effectively eradicate sweet gum, Acacia, white oak, rhododendron, incense, oak and more than 20