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我省水稻病虫综合防治实践表明,三个效益(经济、生态和社会效益)显著,1992年我省综合防治面积560余万亩,经济效益上,产量增加,防治工本下降,综防区亩产比非综防区增产6.80%,亩农药成本比非综防区减少21.29%,亩用工减少近1工;生态效益上,控制高毒农药使用,稻田生态结构起了变化,蜘蛛、青蛙等有明显增加,蜘蛛、稻虱比为1:0.16—6.52;社会效益上,稻谷残毒降低到规定标准以下,杜绝了生产性中毒死亡事故。我省的水稻综防措施,可归纳为自然控制和药剂保护两大方面,在充分发挥自然控制的基础上,有节制地合理施用农药,其主要措
The practice of comprehensive prevention and control of rice pests and diseases in our province shows that the three economic benefits (economic, ecological and social benefits) are remarkable. In 1992, the comprehensive prevention and control area in our province was more than 560 mu, economic benefits, increased output and decreased prevention and treatment costs. The yield of mu was reduced by 21.29% than the non-precautionary area and the number of mu workers was reduced by nearly one worker. On ecological benefits, the control of the use of highly toxic pesticides changed the ecological structure of paddy fields and spiders and frogs increased significantly , Spiders, the ratio of rice louse 1: 0.16-6.52; social benefits, rice residues reduced to below the prescribed standards, to eliminate the production poisoning deaths. The rice comprehensive prevention measures in our province can be summed up in two aspects: natural control and pharmaceutical protection. On the basis of giving full play to natural control, the pesticide should be controlled moderately and moderately. The main measures