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小麦种子直接与丙体666乳剂稀释液接触,影响发芽的药害边际浓度为1.0ppm。麦苗出土后,在土壤中灌注丙体666稀释乳液,使根部进行吸收,施入丙体666的积累量达到20ppm 时,麦苗的叶端出现轻微药害征状。不同加工形式的丙体666乳剂,因溶剂和乳化剂等的不同其内吸毒效亦异。小旁根系积累吸收丙体666,施药后第14天的杀虫毒效约为第7天的3倍。不同密度的盆栽小麦由根系吸收丙体666与每单位重量麦苗的毒效呈现回归直线的相关。五种不同密度,按每盆麦苗的毒效相此,以每盆150粒的毒效最高。因密度的不同,每盆小麦根系吸收丙体666的利用率有一定的差别。
The wheat seeds were directly contacted with C66 emulsion diluent, and the marginal concentration of pesticides that affected germination was 1.0 ppm. After the wheat germ was excavated, the soil was infused with 666 diluted solution of C and the root was absorbed. When the accumulated amount of C 666 reached 20 ppm, the tip of wheat germinated slightly. Different processing forms of C 666 emulsion, due to the different solvents and emulsifiers inside the drug effect is also different. Small root accumulation of C uptake of 666, 14 days after spraying the insecticidal toxic effect of about 7 times the 3 days. Different density of potted wheat from the root absorption of C666 and the per unit weight of the toxic effect of wheat showed a regression line. Five different densities, the toxic effect of each pot of wheat seedlings in this way, to 150 capsules per pot the highest toxicity. Due to the difference of density, there is a certain difference in the utilization rate of C 666 per pot of wheat roots.