9种杀菌剂对新疆荒漠绿洲稻区水稻稻瘟病的防治效果评价  

Evaluation of Controlling Effects of 9 Fungicides against Rice Blast in Oasis Rice Zone of Xinjiang Desert Region

作　　者：高海峰[1] 陈利 白微微[1] 崔燕华 热西达.阿不都热合曼 李广阔[1] GAO Hai-feng;CHEN Li;BAI Wei-wei;CUI Yan-hua;Raxida Abdurahman;LI Guang-kuo(Institute of Plant Protection,Xinjiang Academy of Agricultural Sciences / Key Laboratory of Integrated Crop Pest Management in Northwestern Oasis,Ministry of Agriculture,P. R. China / Scientific Observing and Experimental Station of Crop Pest in Korla,Ministry of Agriculture,P. R. China,Urumqi 830091,China;Agricultural Technology Extension Center of Akesu,Akesu Xinjiang 843000,China)

机构地区：[1]新疆农业科学院植物保护研究所/农业部西北荒漠绿洲作物有害生物综合治理重点实验室/农业部库尔勒作物有害生物科学观测实验站,乌鲁木齐830091 [2]伊宁市农业技术推广站,新疆伊宁835000

出　　处：《新疆农业科学》2018年第11期2105-2111,共7页Xinjiang Agricultural Sciences

基　　金：新疆维吾尔自治区重点研发计划(2016B01007-2)~~

摘　　要：【目的】筛选防治稻瘟病的田间药剂,为新疆水稻稻瘟病的科学防治提供指导。【方法】采用随机区组的方法,定点调查各处理稻瘟病发生情况,评价供试药剂对稻瘟病的防治效果。【结果】药后14 d,75%三环唑WP 225 g a. i/hm^2处理和325 g/L苯甲·嘧菌酯SC 243.75 g a. i/hm^2处理对水稻稻瘟病的防效最高,分别为72.63%和71.77%;其次是2%春雷霉素SL 30 g a. i/hm^2处理和500 g/L甲基硫菌灵SC 1 125 g a. i/hm^2处理,对水稻稻瘟病防效分别为61.48%和61.27%。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WP 225 g a. i/hm^2处理、325 g/L苯甲·嘧菌酯SC 243.75 g a. i/hm^2处理、2%春雷霉素SL 30 g a.i/hm^2处理和500 g/L甲基硫菌灵SC 1 125 g a. i/hm^2处理,可有效控制水稻稻瘟病的发生与危害,且对水稻生长安全,可在大田合理轮换使用。【Objective】The aim of present study is to conduct experiments to screen fungicides in the hope of providing guidance for scientific control of rice blast in Xinjiang.【Method】Randomized block design was used to investigate the occurrence of rice blast at fixed spots,and the effect of fungicides on rice blast was evaluated.【Result】The result showed that,fourteen days after fungicides were used,the treatments of 75%tricyclazole WP with the dosage of 225 g a.i/hm^2,325 g/L difenoconazole-azoxystrobin SC with the dosage of 243.75 g a.i/hm^2,2%kasugamycin SL with the dosage of 30 g a.i/hm^2 and 500 g/L thiophanate-methyl SC with the dosage of 1,125 g a.i/hm^2 had better effect on Magnaporthe oryzae,and their control effects were 72.63%,71.77%,61.48%,61.27%,respectively.There was no abnormal effect on the growth and development of rice treated with various insecticides and no drug damage was found in all the treatments.【Conclusion】The control effects of 75%tricyclazole WP with the dosage of 225 g a.i/hm^2,325 g/L difenoconazole-azoxystrobin SC with the dosage of 243.75 g a.i/hm^2,2%kasugamycin SL with the dosage of 30 g a.i/hm^2 and 500 g/L thiophanate-methyl SC with the dosage of 1,125 g a.i/hm^2 were quite effective to control rice blast and safe to the growth of rice,so it was strongly suggested that they could be applied alternately in rice production in the field.

关 键 词：水稻稻瘟病 杀菌剂 防治效果评价 

分 类 号：S435.111[农业科学—农业昆虫与害虫防治]