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Interaction effect and physiological mechanism in plants
Authors
上官周平
秦娟
Publication date
1 January 2005
Publisher
Abstract
在分析不同植物互作效应的基础上,就互作效应在农林复合系统中对植物体内养分、土壤养分有效性及植物生物学产量等的影响进行了概述,(1)互作促进了植物根系生长,使植物根系表现出较强的竞争作用,也有利于根系间的养分竞争;(2)植物之间的他感作用普遍存在于自然生态系统及栽培生态系统中,在植物资源配置时应充分利用这种相生相克作用;(3)互作促使植物体内的养分转移,改善体内的养分状况,达到植物之间养分互补;(4)互作可以有效地提高土壤肥力,改善土壤的养分状况和根际养分吸收环境,维持植物生产力;(5)互作能更有效地利用光、热、水、土和养分等资源,并减轻病虫危害,表现出明显的产量优势。在豆科与非豆科植物互作中,豆科植物的生物固氮作用为其互作植物提供了氮素营养保证,这种形式互作的产量优势通常在缺氮情况下表现更为明显
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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