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我乡属棉旱粮套种地区,土壤沙性,偏碱。1991年秋播推广了绿磺隆与甲磺隆混配而成的麦草灵防除麦田杂草1.4万亩。取得了良好的防除效果,株防效达87.1％,鲜重防效达91.2％。施药后麦苗虽有一段时间发黄,生长受抑制,但到返青后仍能恢复生长。然而,麦草灵在土壤中的残留对后茬多种作物造成了严重的药害。据初步统计,全乡春播作物发生药害面积1000多亩,占使用面积的8～10％。其中,绝收250亩,农民反映强烈。为此,我站对部分受害作物进行跟踪调查,并实施了一些补救性措施。现将情况小结如下:
My country is cotton intercropping cotton area, sandy soil, alkaline. Autumn 1991 popularization of the green and Long Long-metsulfuron-mixed wheat straw spirit control 14,000 acres of wheat weeds. Obtained a good control effect, strain control effect of 87.1%, fresh weight control effect of 91.2%. Although the wheat seedlings after application of yellow for some time, growth was inhibited, but after returning to green can restore growth. However, the residues of wheat straw in the soil caused serious phytotoxicity to various crops in the following crop. According to preliminary statistics, the township of spring crops occurred phytosanitary area of 1000 mu, accounting for the use of the area of 8 to 10%. Among them, 250 acres of crops, farmers reflect strongly. To this end, I have tracked some of the affected crops and implemented some remedial measures. Now the situation is summarized as follows: