几种杀菌剂对水稻纹枯病的防治效果 |
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引用本文: | 练有生,;练德进,;王增盛,;肖桂雄. 几种杀菌剂对水稻纹枯病的防治效果[J]. 商界.城乡致富, 2014, 0(3): 28-29 |
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作者姓名: | 练有生, 练德进, 王增盛, 肖桂雄 |
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作者单位: | [1]福建省武平县十方镇农业技术推广站,福建武平364301; [2]福建省武平县农业局,福建武平364300; [3]福建省武平县岩前镇农业技术推广站,福建武平364302 |
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摘 要: | [目的]寻求防治水稻纹枯病的有效药剂。[方法]在水稻破口期分别施用250 g/L嘧菌酯SC 240 ml/hm2、30%己唑醇SC 225 g/hm2、30%己唑醇SC 225 g/hm2+250 g/L嘧菌酯SC 225 ml/hm2、75%肟菌酯·戊唑醇WG 150 g/hm2、300 g/L苯醚甲环唑·丙环唑EC 300 ml/hm2、10%井冈霉素A SPX 3600 g/hm2,隔7 d再施药1次,调查几种杀菌剂对水稻纹枯病的防治效果。[结果]30%己唑醇SC 225 g/hm2+250 g/L嘧菌酯SC 225 ml/hm2对水稻纹枯病的防治效果最好,第2次药后14 d的防效为87.53%;其次是30%己唑醇SC 225 g/hm2、300 g/L苯醚甲环唑·丙环唑EC 300 ml/hm2,防治效果分别为79.03%、78.92%;而75%肟菌酯·戊唑醇WG 150 g/hm2、10%井冈霉素A SPX 3600 g/hm2、250 g/L嘧菌酯SC 240 ml/hm2防治效果较差。几种药剂在水稻破口抽穗期用药安全性均较好。[结论]30%己唑醇SC 225 g/hm2+250 g/L嘧菌酯SC 225 ml/hm2可以作为今后防治水稻纹枯病的替代农药,在生产上进一步推广使用。
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关 键 词: | 杀菌剂 水稻纹枯病 防治效果 安全性 |
Control Effect of Several Fungicides Against Rice Sheath Blight |
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Affiliation: | UAN You-sheng et al (Agricultural Technology Promotion Station in Shifang Town, Wuping, Fujian 364301) |
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Abstract: | Objective The aim of this study was to search for effective chemicals to control rice sheath blight. [Method] 250 g/L Azoxystrobin SC (240 ml/hm2 ) , 30%Hexaconazole SC (225 g/hm2), 30% Hexa-conazole SC(225 g/hm2)+250 g/L Azoxys-trobin SC (225 ml/hm2),75% Trifloxys-trobin·Tebuconazole WG ( 150 g/hm2 ) , 300 g/L Difenoconazole ·Propi-conazole EC (300 ml/hm2), 10% Jin-gangmycin-SPX (3 600 g/hm2) were sprayed respec-tively in rice breach period, and once ag-ain after 7 days, in or-der to tinvestigate-the control effect of these fungicides ag-ainst rice sheath blight. [Result] 30%Hexaconazole SC (225 g/hm2)+250 g/L A-zoxystrobin SC (225 ml/hm2) had the best control effect against rice sheath blight, and the control effi-ciency was 87.53%on the 14th day after the second spraying. 30%Hexaconazole SC (225 g/hm2) and 300 g/L Difenoconazole·Propiconazole EC ( 300 ml/hm2) had the better control effect a-gainst rice sheath blight, and the control effi-ciencywas 79.03%and 78.92%, respectively. The control ef-fects of 75%Trifloxystrobin· Tebuconazole WG (150 g/hm2), 10% Jin-gangmycin SPX (3 600 g/hm2) and 250 g/L Azoxystrobin SC (240 ml/hm2)a-gainst rice sheath blight were the worst. These fungic-ides were relatively safe to the rice plants in breach period and heading pe-riod. [Conclusion] 30%Hexaconazole SC (225 g/hm2) + 250 g/L Azoxystrobin SC (225 m l/hm2) can be used in the pro-duction as an alternative pestic ide to con-trol rices heath blight in future. |
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Keywords: | Fungicides Rice sheath blight Control effect Safety |
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