论文部分内容阅读
1985—1988年田间试验结果表明,棉花移栽时施涕灭威500—1000克有效含量/公顷,能有效地控制螨害达50天以上,螨量和红叶株率都比不防治对照显著减低,皮棉产量比对照增加27.8—38.2%。移栽施甲拌磷1350—2500克/公顷,防治叶螨的效果比涕灭威略差,残效期只有30多天,增产效果不如施涕灭威的显著。呋喃丹防治棉叶螨无效。大田示范施涕灭威563克有效含量/公顷,防治叶螨的效果优于常规喷药3—4次。地膜棉施药的防治效果优于常规露地棉。移栽施内吸农药对棉花生长、结铃有一定的促进作用。
The results of field experiments from 1985 to 1988 showed that when cotton was transplanted, aldicarb at 500-1000g / ha effectively controlled the mite damage for more than 50 days and the mite weight and the number of red leafy plants were significantly lower than those of the non-control , Lint yield increased 27.8-38.2% over the control. Transplanted Phorate Phosphorus 1350-2500 g / ha, the effect of spider mite control than aldicarb slightly worse residual effect only more than 30 days, the yield is not as good as the impact of aldicarb aldicarb. Carbofuran control cotton spider mites invalid. Field demonstration aldicarb aldicarb effective content of 563 grams / hectare, spider mite control effect is better than conventional spray 3-4 times. The control effect of plastic film cotton spraying is better than that of conventional open cotton. Transplantation within the absorption of pesticides on cotton growth, knot bolls have a certain role in promoting.