轮作蒜(青蒜)对大棚连作芋产量、品质及土壤微生物群落的影响
Effects of garlic(garlic sprouts)rotation on taro yield,quality and soil microbial community in plastic tunnel
刘德才 1殷剑美 1金林 1王立 1蒋璐 1郭文琦 1韩晓勇 1张培通1
作者信息
- 1. 江苏省农业科学院经济作物研究所,江苏 南京 210014
- 折叠
摘要
为明确轮作蒜(青蒜)对大棚连作芋产量、品质及土壤微生物的影响,本研究通过芋连作、芋-蒜(青蒜)轮作的比较试验,分析了轮作蒜(青蒜)对大棚连作芋产量、品质及土壤细菌和真菌丰富度、多样性和属水平上群落结构的影响.结果表明,与芋连作相比,蒜(青蒜)轮作后茬芋产量、总淀粉含量和总多糖含量均有显著提高;土壤有机质含量、有效铁含量显著增加,交换性钙含量无显著差异;被孢霉菌属(Mortierella)有益真菌的相对丰度显著增加,镰刀菌属(Fusarium)、枝孢属(Cladosporium)、新丛赤壳属(Neonectria)、链格孢属(Alternaria)和曲霉属(Asper-gillus)等有害真菌的相对丰度显著降低.因此,蒜(青蒜)-芋轮作不但可以提高后茬芋的产量和品质,而且可以改善土壤理化性质和微生物群落结构,有利于缓解大棚芋的连作障碍.
Abstract
In order to clarify the effects of garlic rotation on the yield,quality and soil microorganisms of continuous cropping taro in greenhouse,a contrast test between taro continuous cropping and taro-green garlic rotation was conducted to analyze the effects of garlic rotation on the yield and quality of continuous cropping taro in greenhouse and the richness,di-versity and community structure of soil bacteria and fungi at the genus level in this study.The results showed that compared with taro continuous cropping,the yield,total starch content and total polysaccharide content of taro under garlic rotation were significantly increased.The content of soil organic matter and available iron increased significantly,but there was no significant difference in exchangeable calcium content.The relative abundance of beneficial fungi in Mortierella increased significantly,while the relative abundance of harmful fungi such as Fusarium,Cladosporium,Neonectria,Alternaria and Aspergillus decreased significantly.Therefore,the rotation of green garlic-taro can not only improve the yield and quality of subsequent taro,but also improve the soil physical and chemical properties and microbial community structure,which is conducive to alleviating the continuous cropping obstacles of greenhouse taro.
关键词
大棚种植/蒜(青蒜)-芋轮作/连作障碍Key words
planting in greenhouse/garlic(garlic sprouts)-taro rotation/continuous cropping obstacles引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
维普
万方数据