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[目的]探讨药剂处理对黑芝麻茎点枯病的防控效果。[方法]在芝麻始花期后,连续2次喷施以72%农用链霉素SP+70%甲基托布津WP不同比列不同用量复配混用的药剂防治黑芝麻茎点枯病,以72%农用链霉素SP、70%甲基托布津WP为对照药剂,以清水为空白对照。[结果]喷施300 g/hm2+450 g/hm2(农用链霉素+甲基托布津)、300 g/hm2+300 g/hm2(农用链霉素+甲基托布津)2个处理区的防治效果最好,均达70%以上,增产效果显著高于其他处理区,增产20%以上。[结论]在芝麻始花期喷施甲基托布津和农用链霉素单剂及其复配混用的药剂对芝麻茎点枯病的发生有一定的防控效果。
[Objective] The research aimed to discuss the prevention and control effect of medicament on black spot sesame disease of black sesame. [Method] After the first flowering stage of sesame seeds was sprayed twice, 72% of streptomycin sp + 70% thiophanate-methyl WP was mixed with different dosages to control the spot blight of black sesame, 72 % Of agricultural streptomycin SP, 70% thiophanate-methyl WP as a control agent, with water as a blank control. [Result] Two treatment zones of 300 g / hm2 + 450 g / hm2 (streptomycin + thiophanate methyl) and 300 g / hm2 + 300 g / hm2 The best control effect reached 70% or more, and the stimulation effect was significantly higher than that of other treatment areas with a yield increase of more than 20%. [Conclusion] The spraying of thiophanate-methyl and streptomycin single agent and the mixture of them at sesame flowering stage had some preventive and control effects on the occurrence of spot blotch of sesame.