花生连作土壤障碍机制研究进展
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国家自然科学基金项目(41371290,41201281)、江苏省自然科学基金项目(BK2012498)、中国科学院南京土壤研究所知识创新工程领域前沿项目(ISSASIP1107)和赣鄱英才555工程项目资助


Advances in Mechanism of Peanut Continuous Cropping Obstacle
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    摘要:

    花生是我国主要经济作物和油料作物,连作障碍问题严重影响花生的产量与品质,制约着我国花生产业可持续发展。已有研究认为自毒物质积累、病菌增加、土壤微生物群落失衡及土壤理化性质恶化是花生连作障碍的主要因子,但大多停留在单因子水平上,有的认识缺乏直接的证据。本文简要综述了花生连作障碍的危害、机制及调控措施,结合作者近几年来相关研究,主要从花生根系分泌物效应、化感物质存留特征、土壤生物群落演变等方面介绍了花生连作障碍机制研究进展,最后对花生连作障碍的进一步研究及防控技术发展方向提出展望。

    Abstract:

    Peanut is an important oil and cash crop in China, and its continuous cropping obstacle seriously influences the quality and yield of peanut, and confines the sustainable development of peanut industry. Various factors, including the accumulation of autotoxins, increase of soil pathogens, unbalance of soil microbial community, and disorder of physico-chemical properties were proposed to be mechanisms of continuous cropping obstacle by previous studies. However, investigations mostly focused on single factor of causing continuous cropping obstacle, and lacked the direct evidence to some extent. The paper reviewed the influences, mechanism and controlling measures of peanut continuous cropping obstacle, and presented the research advances in the mechanism focused on the effect of peanut root exudates, remaining characteristics of allelochemicals and the development of soil biological community. The future challenges and possible approaches to alleviate replanted obstacle are also discussed.

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李孝刚,张桃林,王兴祥.花生连作土壤障碍机制研究进展[J].土壤,2015,47(2):266-271. LI Xiao-gang, ZHANG Tao-lin, WANG Xing-xiang. Advances in Mechanism of Peanut Continuous Cropping Obstacle[J]. Soils,2015,47(2):266-271

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  • 在线发布日期: 2015-05-29
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