摘要
1982—1984年在安徽进行的研究表明,川化-018用于秧苗处理预防白叶枯病最为经济有效,纯收益合投资的30倍。早稻和中稻本田用该药喷洒可获得较好的防治和较高的产量,纯收益分别合投资的2.55倍及2.2倍。本田发病中心用该药处理获得满意的效果。因此,在白叶枯病的综防中,对中抗和中感的栽培品种扩大秧苗处理而减少本田防治面积是合理可行的。
The study conducted in Anhui in 1982—1984 showed,that theChuanhua-018 used as a seedling treatment to prevent the incidence ofleaf blight of rice is the most effective and economic method and the netprofit is 30 times the investment.In the early and middle rice fieldbetter control and higher yield is achieved after spraying the chemical,though the net profits are only 2.55 times and 2.2 times the investmentrespectively.However,it is still worth applying.In the field experi-ments satisfactory results were obtained after the center of diseasedplants was treated with this chemical.Since the seedling treatment co-operated with the control of the center of diseased plants is effectiveand economic and it can also reduce the environmental contamination,it is feasible to extend the area of seedling treatment and reduce thefield control for the middle levels of resistant and susceptible culti-
vars in the integrated management of leaf blight of rice.
出处
《植物保护学报》
CAS
CSCD
北大核心
1991年第2期187-191,共5页
Journal of Plant Protection
