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Effects of Plastic Cover Cultivation on Soil Microbial Biomass
Authors
张成娥
梁银丽
贺秀斌
Publication date
1 January 2002
Publisher
Abstract
通过田间小区试验 ,对不同施肥条件下黄土塬区地膜覆盖栽培玉米与裸地种植玉米各生长期土壤微生物生物量 C、N、P进行了研究 ,其结果表明 :地膜覆盖栽培各生长期玉米地的微生物量 C均低于裸地种植玉米地 ,微生物量 N与 C的趋势基本一致 ,其中苗期表现最明显 ;而微生物量 P有所不同 ,拔节期地膜覆盖玉米地的微生物量 P明显低于裸地种植玉米地 ,抽雄期则是前者明显高于后者。研究表明地膜覆盖种植玉米对土壤微生物量 C、N、P产生重要影响 ,其影响程度与作物生育期有关
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Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources
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Last time updated on 21/09/2018