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随着更新林面积的不断扩大,幼林扶育这一主要生产环节,已成为林区营林生产中急需解决的突出问题。林区的采伐迹地,不仅山形复杂,而且面积大、杂草丛生、交通不便。人工除草劳力不足,应用化学灭草剂喷雾常常解决不了大面积施药用水问题。如何找出一项即省工、除草效果又好、适合山地大面积作业、效率高的灭草技术,这是我们进行试验研究的根本目的。1980年我们在常量喷雾试验的基础上,选择了四种适合超低量喷雾的高效化学灭草剂,应用超低容量喷雾技术,对不同的造林树种进行了灭草试验研究,取得了初步成效。
With the continuous expansion of the area of rehabilitated forests, the major production link of nurturing young forests has become an outstanding issue that needs urgent solution in forest production. Deforestation areas, not only Yamagata complex, but also large area, overgrown with weeds, traffic inconvenience. Artificial weeding labor shortage, the application of chemical herbicide spray often can not solve large area application of water problems. How to find one that is labor-saving, good weeding effect, suitable for mountainous areas of large-scale operations, high efficiency weed control technology, which is the fundamental purpose of our experimental study. In 1980, based on the constant spray test, we selected four highly effective chemical herbicides suitable for ultra-low-volume spraying. We applied the ultra-low volume spray technique to test the effects of different weed species on the weed control and achieved initial results .