专论与研究

南方粳稻稻曲病防治药剂及防治适期探讨

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  • 1江西省农业技术推广总站,南昌 330046;2 余干县农业局,江西 余干 335100

网络出版日期: 2018-03-20

基金资助

江西省农业厅“籼改粳”专项;公益性行业(农业)科研专项(201303102)

Study on the Control Pesticides and Optimum Period for Rice False Smut of Japonica Rice in South China

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Online published: 2018-03-20

摘要

针对南方粳稻生产上危害日益严重的稻曲病,在大田重点开展了防治药剂筛选试验。结果表明,拿敌稳(病指防效为76.82%,下同)、爱苗(73.18%)、菌刀(69.21%)及头等功(68.54%)4个药剂防效相当,极显著优于阿米妙收(48.68%)、井冈霉素(49.01%)和好立克(42.05%)的防效,这4种药剂处理较对照增产4.38%~7.89%。破口前10 d、破口前3 d和齐穗后各施药1次的处理(S1)稻曲病病指防效显著优于破口前和齐穗后各施1次药的处理(S2)以及齐穗后施1次药的处理,实际产量差异达极显著水平;破口前和齐穗后各施1次药的处理与齐穗后施1次药的处理防效相当,实际产量差异不显著。

本文引用格式

乐丽红1,2,陈忠平1,程飞虎1* . 南方粳稻稻曲病防治药剂及防治适期探讨[J]. 中国稻米, 2018 , 24(2) : 60 -63 . DOI: 10.3969/j.issn.1006-8082.2018.02.014

Abstract

Field trial was carried out to screening pesticides of controlling rice false smut(RFS)(Ustilaginoidea virens)which was increasingly serious in japonica rice. The results showed that the control effects of Trifloxystrobin-Tebuconazole, Amur, Jingangmy-cin A and Hexaconazole were similar, but significantly higher than the control effects of Difenoconazole-Azoxystrobin, Jingangmy coin and Tebuconazole. Compared with the control, the yields of the 4 pesticides treatments were increased by 4.38%~7.89% respectively. The control effect of application pesticide 1 time each at 10 days before rupturing, 3 days before rupturing and after heading was significantly better than that of 1 time each before rupturing and after heading, and once after heading. There was significant difference in yield among the 3 treatments. The control effect of application pesticide 1 time each before rupturing and after heading was similar to application pesticide once after heading, but the difference of yield was not significant.

参考文献

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