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配方施肥对八角炭疽病防控效果及生化机制研究
黄乃秀1, 赵鹏飞1, 廖旺姣1, 邹东霞1, 常明山1, 张兰芳2
1.广西壮族自治区林业科学研究院;2.广西壮族自治区国有高峰林场
摘要:
为探寻八角炭疽病 Colletotrichum horii 绿色防控途径，研究采用单因素完全区组随机设计，在发病林区施用不同配方肥料，测定对病害控制效果、叶片生理生化指标变化以及在生产上扩大试验示范。 结果表明：不同配方肥料对病害的控制效果不同，配方 1（N +P2O5+ K2O 35%，有机质 15%，有效钙、镁、硼、锌、铜含量 3 902 mg/kg，含生防菌、肥料增效剂及复合杀菌剂）的病情指数最低，防治效果达65.65%；配方 1 处理的 POD、SOD 活性、百叶鲜质量和 MDA 含量与其它处理差异显著；配方 1 在 4 个不同区域点大面积试验示范，病害控制效果在 79.65% 以上。通过不同肥料配方处理后，对八角炭疽病的防治均有一定效果，以配方 1 效果最为明显，具有应用价值。
关键词:  八角炭疽病  施肥控制  试验示范
DOI：
分类号:
基金项目:广西重点研发计划项目（桂科 AB1850020）
Study on the Control Effect and Biochemical Mechanism of Colletotrichum horii with Formula Fertilization
Huang Naixiu1, ZhaoPengfei1, Liao Wangjiao1, Zou Dongxia1, Chang Mingshan1, Zhang LanFang2
1.Guangxi Forestry Research Institute,Nanning;2.Guangxi State-owned Gaofeng Forest Farm
Abstract:
In order to explore the green prevention and control of Colletotrichum horii, this study adopted a single-factor complete block random design, applied different formulas of fertilizers in the diseased forest area, measured the effect on disease control, the change of leaf physiological and biochemical indexes, and expanded the experimental demonstration in production. The results showed that different formulas had different effects on disease control, and the disease index of formula 1 (N+P2O5+K2O 35%, organic matter 15%, effective calcium, magnesium, boron, zinc and copper content 3902 mg/kg, including biocontrol bacteria, fertilizer synergist and compound fungicide) was the lowest, and the prevention and control effect reached 65.65%. The contents of POD, SOD activity, fresh weight of louvers and MDA in Formula 1 treatment were significantly different from those of other treatments. Formula 1 was tested and demonstrated in a large area in 4 different regional points, and the disease control effect was above 79.65%. After treatment with different fertilizer formulations, it has a certain effect on the prevention and control of anise anthracnose, and the effect of formula 1 is the most obvious and has application value.
Key words:  Colletotrichum horii  fertilizer control  application test