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杂草为害造成水稻的損失,有时不亚于病虫害。它不仅导致产量下降,而且引起种子混杂、品質变劣。我省每年种植水稻两千余万宙,产量占粮食总产量40%以上,除草又是水稻田間管理上耗費劳力最多的一項作业。因此,研究提出經济有效的防除稻田杂草措施,乃是提高劳动效率,增加水稻以至于粮食总产量的重要課題。为此,作者自1960年至1962年对此进行了研究。第一年初步作了2,4-滴防除杂草的效果及使用技术試驗;第二年除繼續这一工作外,又开始某些农业措施除草研究,1962年对稻田杂草的种类分布及其生活型作了初步調查,并繼續研究不同农业措施对防除杂草的效果。下面是三年的試驗結果。
Weeds damage caused by the loss of rice, and sometimes as much as pests and diseases. It not only leads to a decline in yield, but also causes the seeds to be mixed and deteriorates in quality. In our province, there are more than 2000 thousand rice planted each year, and the output accounts for more than 40% of the total grain output. Weeding is also one of the most labor-intensive tasks in paddy field management. Therefore, it is an important issue to study how to put forward the economic and effective measures to prevent and control weeds in paddy fields, but to increase labor efficiency and increase the total output of rice. To this end, the author from 1960 to 1962 studied this. In the first year, 2,4-D effects of weed control and preliminary technical tests were conducted. In the second year, we started some weeding studies on agricultural practices and the distribution of weeds in paddy fields in 1962 The life style made a preliminary investigation, and continue to study the effect of different agricultural measures on the control of weeds. The following is a three-year trial results.