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在杂草防除研究中,决定一种除草剂或其混合物是否将在一般的田间作业中找到地位的最终试验,是一种永恒地循环着的问题。这类性质的试验工作必须在新植和宿根甘蔗双方面进行,以便在不同的土壤和气候环境下包括了最广泛的杂草种的范围。伍特福特记述了除草剂的毒力估价必须经过三个阶段,主要的是首先决定除草剂对作物的毒力,其次对杂草的毒力,最后对作物和杂草一起的毒力。这篇论文仅论及作物与杂草共
In weed control studies, the ultimate test of whether or not a herbicide or its mixture will find its place in normal field operations is an eternal recurring problem. Trials of this nature must be carried out on both new and perennial sugarcane so as to include the most extensive range of weed species in different soil and climatic environments. Woodford states that the evaluation of a herbicide’s toxicity must go through three stages, primarily to determine first the herbicide toxicity to the crop, secondly to the weed, and finally to the crop and to weeds. This paper deals only with crops and weeds