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Effects of Longterm Rotations and Fertilizations on Soil Microflora
Authors
樊军
郝明德
Publication date
1 January 2003
Publisher
Abstract
根据长期田间试验 ,对施肥、作物、种植方式等对土壤细菌、真菌与放线菌含量的影响进行分析。结果显示 :施肥 ,特别是施有机肥明显提高土壤微生物数量 ,玉米、苜蓿与冬小麦连作不同施肥土壤细菌数量相对休闲地变幅在 - 197.0 4× 10 5~ +187.0 7× 10 5个 / g土 ,真菌在 - 6 .0 8× 10 3~ +36 .5 7× 10 3个 / g土 ,放线菌在 - 4 7.2 1× 10 4~+30 1.4× 10 4个 / g土。轮作系统不同施肥处理真菌与放线菌数量高于休闲地。在施氮磷化肥条件下不同作物轮作 ,苜蓿与糜子对细菌有相对抑制作用 ,对真菌与放线菌有促进作用 ,红豆草抑制放线菌促进细菌 ,豌豆对三类微生物均有抑制作
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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