| 周龙,李进平,曾志伟,王志刚,徐晨,杨德荣.生物刺激素对香蕉园土壤改良和枯萎病防治的影响[J].中国南方果树,2019,48(4): |
| 生物刺激素对香蕉园土壤改良和枯萎病防治的影响 |
| Effect of biostimulant on soil improvement and Fusarium oxysporium disease control in abandoned banana garden |
| 投稿时间：2018-11-08 修订日期：2019-04-08 |
| DOI： |
| 中文关键词: 撂荒蕉园 生物刺激素 土壤改良 香蕉枯萎病 |
| 英文关键词:abandoned banana garden biostimulant soil improvement banana Fusarium oxysporium |
| 基金项目: |
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| 摘要点击次数: 1843 |
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| 中文摘要: |
| 本研究在大田条件下,设常规施肥(CK)、常规施肥+生物刺激素(YC)、常规施肥+生物有机肥(B)和常规施肥+生物有机肥+生物刺激素(YCB)4个处理,采用完全随机区组试验研究生物刺激素对香蕉园土壤改良和枯萎病防治的影响。结果表明,YCB处理较B处理显著提高pH、有机质含、碱解氮、速效磷和速效钾。相比于YC处理,YCB处理细菌数和放线菌数分别增加167.9%和21.1%,真菌数和尖孢镰刀菌数分别降低21.3%和90.8%；相比于B处理,YCB处理细菌数和放线菌数分别增加31.3%和22.0%,尖孢镰刀菌数降低89.0%。与YC处理和B处理相比,YCB处理显著降低香蕉黄叶率和发病率。YCB处理经济收获率较B处理增加22.1%,可溶性糖显著增加11.1%。相关分析显示,YCB处理通过对土壤pH的调节及土壤有机质提升促进土壤微生物群落结构变化,进而降低香蕉枯萎病发生。 |
| 英文摘要: |
| There was a great significance about soil improvement to improve soil microenvironment and banana wilt disease prevention and control. In order to study the effect of biostimulant on soil improvement and Fusarium oxysporium disease control in abandoned banana garden. A field experiment was carried out under abandoned banana garden, and four treatments with three replications were completely randomized block including conventional fertilizer(CK), conventional fertilization + bio-stimulant(YC), conventional fertilization + bio-organic fertilizer(B) and conventional fertilizer + bio-organic fertilizer + bio-stimulant(YCB). The results showed that compared with B treatment, YCB treatment increase significantly pH b, organic matter, Available nitrogen, available phosphorus, available potassium. While no significant effect at YC treatment. Otherwise, it also plays an important role about soil microenvironment. YCB treatment increased bacteria and actinomycetes by 167.9% and 21.1% than YC treatment, and decrease fungi and Fusarium oxysporum by 21.3% and 90.8% than it. Meanwhile, compared with B treatment, YCB treatment increased bacteria and actinomycetes by 31.3% and 22.0%, reduce Fusarium osysporum by 89.0% significantly, respectively. In terms of prevention, YCB treatment reduce significantly the banana yellow rate and morbidity compared with YC treatment and B treatment. In addition, YCB treatment increased economic recovery by 22.1% than B treatment, no improve about production. Simultaneously,YCB and B treatment improving soluble sugar by 9.3% and 21.5% compared with CK, and YCB treatment increasing soluble sugar by 11.1% than B treatment. Meanwhile, YCB treatment compared with CK, YC and B treatment decrease soluble acid by 23.4%, 23.4% and 21.7%, respectively. Correlation analysis showed that, YCB treatment can reduce the banana Fusarium wilt, through regulation pH and raising soil organic matter, then, promoting the soil microbial community structure. |
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