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Copyright of Journal of Agro-Environment Science is the property of Journal of Agro-Environment Science Editorial Board and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

【Objective】The study aimed to verify the effect of continuity planting green crops on soil aggregate. 【Method】The effect of continuously panting the same green manure crop of Vicia sativa L., Raphanus sativus L., Vicia cracca L., Vicia villosa Roth and Vicia villosa var. on composition and diameter of soil aggregates in topsoil layer was studied by a field experiment.【Result】The continuously planting Vicia villosa var. raises the content of mechanical stability aggregate with > 5 mm and water stability aggregate with 2-0. 25 mm mainly. The continuously planting Raphanus sativus L. increases the content of mechanical stability aggregate with 5-2 mm and water stability aggregate with > 5 mm mainly. The continuously planting Vicia cracca L. and Vicia villosa Roth increases the content of mechanical stability aggregate with 2-0. 25 mm mainly. The increase of water stability aggregate with > 5 mm is beneficial for accumulation of macro water stability aggregates and the macro water stability aggregate content of in topsoil layer under the soil planting Raphanus sativus L is the highest. The soil mean weight diameter, geometric mean diameter and construction aggregation increase with increase of water stability aggregate content in soil. 【Conclusion】The continuously planting green manure crops can increase the content of mechanism stability and water stability aggregates in soil, which is beneficial for formation of soil water stability aggregate with > 0. 25 mm. Different green manure crop has the different effect on the diameter of soil aggregate. [ABSTRACT FROM AUTHOR]

Copyright of Southwest China Journal of Agricultural Sciences is the property of Editorial Department of Southwest China Journal of Agricultural Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)