摘要
【目的】通过田间药剂试验,明确几种杀菌剂对水稻稻瘟病的防治效果。【方法】采用田间喷雾的方法对水稻稻瘟病进行防治。【结果】药后14 d,75%三环唑可湿性粉剂225 g a.i/hm2和25%咪鲜胺乳油270 ga.i/hm2防效分别为65.84%和62.61%,显著高于15%氯啶菌酯.戊唑醇悬浮剂67.5 g a.i/hm2的防效,与15%氯啶菌酯.戊唑醇悬浮剂112.5 g a.i/hm2、15%氯啶菌酯.戊唑醇悬浮剂157.5 g a.i/hm2、30%醚菌酯悬浮剂270 g a.i/hm2的防效无显著性差异。各药剂处理对水稻生长发育无异常影响、无药害。【结论】75%三环唑可湿性粉剂225 g a.i/hm2、25%咪鲜胺乳油270 g a.i/hm2、30%醚菌酯悬浮剂270 g a.i/hm2和15%氯啶菌酯.戊唑醇悬浮剂157.5 g a.i/hm2对水稻稻瘟病的防治效果较好,可在大田合理轮换使用。
[ Objective ] The purpose of the present study conducted was to screen several fungicides which would have better control effect on rice blast. [ Method ] Four kinds of fungicides were used by being sprayed to control rice blast at test concentration. [ Result] After fourteen days, the result showed that the treatments of 75% tricyclazole WP with the dosage of 225 g a. i/hm^2, 25% prochloraz EC with the dosage of 270 g a. i/ hm^2, 30% kresoxim - methyl SC with the dosage of 135 g a. i/hm^2 and syp - 7017 · tebuconazole 15% SC with the dosage of 157.5 g a. i/hm^2 had better effect on Magnaporthe oryzae, with the control effect of 65.84%, 62.61%, 59.55% and 58.88% , respectively. All the treatments did not negatively influence the growth and development of the rice. [ Conclusion ] The control effects of 75 % tricyclazole WP with the dosage of 225 g a. i/hm^2, 25% prochloraz EC with the dosage of 270 g a. i/hm^2, 30% kresoxim - methyl SC with the dosage of 270 g a. i/hm^2 and mixed syp -7017 · tebuconazole 15% SC with the dosage of 157.5 g a. i/hm^2 were quite effective, so it was suggested that they could be applied alternately in the large area of field.
出处
《新疆农业科学》
CAS
CSCD
北大核心
2013年第4期638-641,共4页
Xinjiang Agricultural Sciences
基金
新疆维吾尔自治区科技成果转化专项资金项目(201154101)
关键词
水稻稻瘟病
杀菌剂
防治效果
fungicide
Magnaporthe oryzae
control effect
