【摘要】 本文首次采用多定量指标法综合评价了防除效果。试验结果表明防除田蓟和群心菜的最佳施药浓度和施药量分别为0.5％和460克/亩与0.7％和646克/亩的草甘膦粉剂(0.5％)。通过本研究,为今后生产上大面积使用草甘膦防除这两种杂草提供了科学依据。更多还原

【Abstract】 The multi-quantitative indexes method has been first used to evaluate the controlling the results. The results have shown that the most effective concentration and the rate of applied glyphosate of controlling Cirsium Arversa(a. i. 50%) and Cardaria Draba are 0. 5% and 480g/ac,0. 7% and 646g/ac,respectively. By studying the controlling weeds,the paper has provided the scientific basis for controlling the two kinds of weeds with glyphosate in large area.更多还原