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1975年开始在浙江省肖山县东方红公社进行水稻害虫综合防治试验。试点面积由430亩逐年扩展到全公社8000亩稻田。推行综合防治后,保证了粮食产量逐年增加,1976年平均亩产1385斤,1977~1979年分别为1464斤,1849斤和2082斤,比上年各增产5.7%、26.3%、12.0%。每千斤粮的农药成本由3.77元减为2.45~2.98元,降低20.95~35.01%:全年药治次数由9.5亩次减为2.08~2.89亩次;病虫害造成的损失由10—20%,减为0.6~2.9%。天敌数量计增3.64~44.76倍。抽测谷样糙米上六六六残留量为0.04~0.47毫克/公斤。 综合防治的策略是在农业防治的基础上合理用药,保护天敌,注意措施之间的协调配合.
Beginning in 1975 in Zhejiang Xiaoshan County Dongfanghong commune for pest integrated pest control experiments. The pilot area has been expanded from 430 mu annually to 8000 mu of paddy fields in the commune. After the implementation of the comprehensive prevention and control, grain output was guaranteed to increase year by year. In 1976, the average mu yield was 1,385 catties. From 1977 to 1979, they were 1,464 catties, 1,849 catties and 2,082 catties, respectively, up 5.7%, 26.3% and 12.0% over the previous year respectively. The cost of pesticides per kilogram of grain was reduced from 3.77 yuan to 2.45-2.98 yuan, a decrease of 20.95-35.01%. The annual number of drug treatment was reduced from 9.5 mu to 2.08-2.89 mu times. The pest and disease losses were reduced from 10-20% Is 0.6 to 2.9%. The number of natural enemies increased 3.64 ~ 44.76 times. The grain size of 666 residues was 0.04-0.47 mg / kg. The strategy of comprehensive prevention and control is to rationally use medicine on the basis of agricultural prevention and control to protect natural enemies and pay attention to the coordination and cooperation among the measures.