impactofcuttingaclovercroponthenitrogensuppliedtowinterwheatinanintercroppingsystem

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	impactofcuttingaclovercroponthenitrogensuppliedtowinterwheatinanintercroppingsystem
	Sun Zhenzhong; Ouyang Zhu; Li Fadong; Wu Lanfang
	2012
Source Publication	journalofresourcesandecology
ISSN	1674-764X
Volume	003 Issue:001 Pages:73
Abstract	三叶草在小麦-三叶草间作系统中起到为小麦提供氮肥的重要作用。中国科学院禹城综合试验站的田间试验评价了小麦-三叶草间作系统中刈割三叶草对三叶草固氮以及向小麦转移氮素的影响。利用15N自然丰度法测定了小麦-三叶草间作系统中氮素的转移。结果表明,整个生长季三叶草向小麦转移的氮量在34.4–57.5 kg·ha-1之间。与不刈割相比,刈割三叶草增加了土壤中累积的氮素,同时减少了小麦茎叶中氮浓度。将刈割的茎叶覆盖到小麦行间导致小麦茎叶中氮浓度的降低。该研究提供了小麦-三叶草间作系统中氮素从三叶草向小麦转移的量,为该间作系统在华北平原的推广提供参考依据。
Language	英语
Document Type	期刊论文
Identifier	http://ir.igsnrr.ac.cn/handle/311030/102190
Collection	中国科学院地理科学与资源研究所
Affiliation	中国科学院地理科学与资源研究所
First Author Affilication	中国科学院地理科学与资源研究所
Recommended Citation GB/T 7714	Sun Zhenzhong,Ouyang Zhu,Li Fadong,et al. impactofcuttingaclovercroponthenitrogensuppliedtowinterwheatinanintercroppingsystem[J]. journalofresourcesandecology,2012,003(001):73.
APA	Sun Zhenzhong,Ouyang Zhu,Li Fadong,&Wu Lanfang.(2012).impactofcuttingaclovercroponthenitrogensuppliedtowinterwheatinanintercroppingsystem.journalofresourcesandecology,003(001),73.
MLA	Sun Zhenzhong,et al."impactofcuttingaclovercroponthenitrogensuppliedtowinterwheatinanintercroppingsystem".journalofresourcesandecology 003.001(2012):73.

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