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久效磷是一种触杀性和内吸性的广谱杀虫剂,是目前取代六六六的有机磷农药之一,其结构式为。久效磷是剧毒农药,对大白鼠急性口服毒性LD_(50)为20mg/kg;它溶于水、醇、丙酮、二氯甲烷,稍溶于乙醚,微溶于二甲苯,不溶于石油醚、煤油和柴油;久效磷耐日晒,不易发生光分解、不易气化。使用剂型有50％乳剂、40％水剂。我们利用微宇宙装置及盆钵栽种水稻,研究了久效磷在水一水稻—土壤系统中的运转与
Monocrotophos is a contact and broad-spectrum insecticide insecticide, is currently replacing the BHC six organophosphorus pesticide one of its structural formula. Monocrotophos is a highly toxic pesticide and its acute oral toxicity to rats is LD 50 (50 mg / kg). It is soluble in water, alcohol, acetone and methylene chloride, slightly soluble in ether, slightly soluble in xylene and insoluble in petroleum Ether, kerosene and diesel; monocrotophos resistant to sun, not prone to photolysis, easy to gasification. Use formulations are 50% emulsion, 40% water. We use micro-cosmic devices and pots to grow rice and study the action of monocrotophos in water-rice-soil system and