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为了验证45%阿维菌素·毒死蜱乳油对水稻二化螟的防治效果,为供试药剂提供田间最佳使用剂量和使用技术的药效资料,特进行本试验。材料与方法试验地点试验地点选择在潜江市高石碑老堤村二组的中稻田中进行。试验地和试验药剂试验地土壤质地为壤土,p H值7.0,土壤有机质含量2.3%,土壤肥力中等;水稻移栽前667m2施碳铵、磷肥各25kg作底肥,移栽后追施返青分蘖肥尿素10kg,田间排灌方便,前茬作物油菜,
In order to verify the effect of 45% abamectin-chlorpyrifos EC on rice stem borer (Chilo suppressalis), this experiment was carried out to provide the best dosage and field-effect data for the tested pesticide. Materials and methods Test site The test site selection was carried out in the middle paddy fields of the two groups of Gaosidao old embankment in Qianjiang. Experimental soil and test agent soil texture for the loam soil, p H value of 7.0, soil organic matter content of 2.3%, soil fertility; rice transplanting 667m2 before the application of ammonium bicarbonate, phosphate 25kg as base fertilizer, transplanting topdressing tillering fertilizer Urea 10kg, field irrigation and drainage convenience, the former crop rapeseed,