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Critical review of the impact of cover crops on soil properties

International Soil and Water Conservation Research 2022年第3期10卷 343-354页

作者： Komlan Koudahe samuel callen Koffi Djaman Biological and Agricultural Engineering Department Kansas State University1016 Seaton Hall920 N.Martin Luther King Jr.DriveManhattanKS66506USA Department of Plant and Environmental Sciences New Mexico State UniversityAgricultural Science Center at FarmingtonP.O.Box 1018FarmingtonNM87499USA

Grasses as well as leguminous and non-leguminous broadleaves are the major categories of commonly grown cover crops *** review focuses on the contribution of cover crops to soil *** review first considers the single and mixed cover crops and shows that grass species are desirable for their decay and ability to provide substantial soil cover,broadleaf species are used for their quick decomposition and capacity of releasing residues into the soil,while the leguminous species are used for their ability to fix atmospheric ***,the impacts of cover crops on soil health are *** cover crops into conventional cropping systems may reduce soil bulk density,improve soil structure and hydraulic properties to facilitate increased water infiltration and *** residue additions from cover crops may enhance soil organic C and N accretion as well as increase availability of P,K,Ca,Fe and Mg in some soil types under certain climatic ***,cover crops may provide a better condition for microbial activity,abundance,and ***,the review shows that through proper management,cover crops may be utilized as an essential component of soil conservation practices for enhanced soil ***,further investigation is necessary to determine cover crop effects in additional cropping systems and climatic zones as well as the long-term effects of cover crops on soil properties,subsequent crop yield,and overall cropping system *** review is an important source of information for crop growers,crop management institutions,universities,and crop consultants for sustainable agricultural production.

关键词： Cover crops Soil properties Grasses Leguminous

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