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经室内试验表明,防护剂——溴硫磷、杀螟硫磷、甲基嘧啶硫磷和马拉硫磷在有效剂量——小于30ppm 范围内,对稻谷、小麦、玉米、高梁和大麦等种子发芽率无影响,在高达500ppm 以上时,才开始部分出现药害。四种防护剂处理的稻谷、小麦、玉米、高梁和大麦种子,对其发芽率及丧失发芽率作为药害影响程度作综合比较,其安全性程序为:溴硫磷>杀螟硫磷、甲基嘧啶硫磷>马拉硫磷。小麦、玉米、高梁等种子耐受溴硫磷剂量高达7500ppm 时,对发芽率仍无影响。种子经四种防护剂处理,其耐受力程序为:玉米>高梁>小麦>稻谷和大麦,玉米耐受剂量高达10000ppm 时,对种子发芽率均无影响,田间试验表明,经马拉硫磷15.30ppm 剂量处理的大小麦和稻谷,对其产量均无不良影响。
The laboratory tests showed that the protective agents - bromophosphates, fenitrothion, fenitrothion and malathion, were effective against seeds of rice, wheat, corn, sorghum and barley at an effective dose of less than 30 ppm Germination rate no effect, up to 500ppm or more, began to part of the injury. Four kinds of protective agent treatment of rice, wheat, corn, sorghum and barley seeds, the germination rate and loss of germination rate as a comprehensive comparison of the extent of injury, the safety program: Phoxim> fenitrothion, A Pyrimethamine> Malathion. Wheat, corn, sorghum and other seeds tolerated bromothphos dose up to 7500ppm, the germination rate is still no effect. The seeds were treated with four kinds of protective agents, and the tolerance procedure was as follows: corn> sorghum> wheat> rice and barley, the tolerant dose of maize was up to 10000ppm, and had no effect on the seed germination rate. Field experiments showed that the malathion 15.30ppm dose treatment of wheat and rice size, no adverse impact on the yield.