作　　者： ; ; ;

机构地区： 江西农业大学农学院

出　　处： 《生态学杂志》 2013年第9期2480-2484,共5页

摘　　要： 豆科-禾本科间作作为一种农业可持续发展模式,在保证粮食产量和维持氮素平衡中发挥了重要作用,因而引起了国内外学者的广泛关注。本文总结分析了豆科-禾本科间作对豆科生物固氮、作物氮素吸收和土壤氮素的影响;指出,合理的豆科-禾本科作物间作能够促进豆科作物的生物固氮,提高禾本科作物的氮素利用效率,减少农田氮素的损失,有利于保护农田生态环境和维持农业可持续发展;提出了豆科-禾本科间作系统应加强根际土壤微生物群落结构变化以及与作物和土壤相互作用的研究,以期为进一步利用和改进豆科-禾本科间作系统提供一定的参考依据。 Legume-Gramineae intercropping system, as a model of sustainable agricultural devel- opment, plays an important role in ensuring grain yield and maintaining nitrogen balance, leading to the widespread concern by the scientists at home and abroad. This paper reviewed the effects of legume-Gramineae intercropping on the legume nitrogen fixation, crop nitrogen uptake, and soil nitrogen balance. Rational legume-Gramineae intercropping can promote the legume biologi- cal nitrogen fixation, improve Gramineae crop nitrogen use efficiency, reduce soil nitrogen loss, and benefit the protection of cropland ecological environment and the maintenance of agricultural sustainable development. In order to further use and improve the legume-Gramineae intercropping system, it was suggested that more attentions should be paid on the changes of rhizosphere micro- bial community structure and the interactions among crop, rhizosphere microorganisms, and soil.

关 键 词： 间作 生物固氮 土壤氮素 氮素利用效率

领　　域： [农业科学] [农业科学]