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野燕麦是农田恶性杂草,全国有16个省(区),约6000万亩农田受害,估计年损失粮食20亿斤。本文记述了我国野燕麦的分布、发生危害、生物学特性及八个生态型的特征等方面的初步研究结果;根据野燕麦的发生密度与作物产量之间的关系,提出了小麦、青稞、油菜等作物产量损失的估算公式,防除指标及其防除策略;还根据田间试验结果,对13种除草剂的效果作了初步评价,针对青海自然特点,探讨了除草剂的应用技术问题。
Wild oatmeal is a vicious weed in farmland. There are 16 provinces (autonomous regions) in the country and some 60 million mu of farmland are harmed. It is estimated that 2 billion jin of grain will be lost every year. This paper describes the distribution of wild oats in China, the occurrence of damage, biological characteristics and characteristics of eight ecotypes and other aspects of the preliminary study; According to the relationship between the occurrence density of wild oats and crop yield, wheat, barley, rape And other crop yield loss formula, control indicators and strategies to control; also based on the field test results, the effect of 13 kinds of herbicides made a preliminary assessment of the natural characteristics of Qinghai, we discussed the application of technical problems of herbicides.