QQ客服 官方微博 反馈留言

	Effects of aerobic conditions in the rhizosphere of rice on the dynamics and availability of phosphorus in a flooded soil - A model experiment
	Zhang, YS; Lin, XY; Werner, W
刊名	JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE-ZEITSCHRIFT FUR PFLANZENERNAHRUNG UND BODENKUNDE
	2004-02-01
卷号	167期号:1页码:66-71
关键词	flooding Oryza sativa L. O-2 secretion P adsorption retention P desorption release P fractions P uptake rhizosphere
ISSN号	1436-8730
DOI	10.1002/jpln.200320349
通讯作者	Werner, W()
英文摘要	The secretion of O-2 by rice roots results in aerobic conditions in the rhizoshere compared to the bulk flooded soil. The effect of this phenomenon on the adsorption/desorption behavior and on the availability of phosphorus (P) in a flooded soil was investigated in a model experiment. An experimental set-up was developed that imitates both O-2 release and P uptake by the rice root. The results showed that O-2 secretion significantly reduced P adsorption/retention and increased P desorption/release in the "rhizosphere" soil, compared to the anaerobic bulk soil. The P uptake by an anion exchange resin from both unfertilized and P-amended soil was significantly increased. The results confirm that the O-2 secretion is an important mechanism to enhance P availability and P uptake of rice under flooded conditions, where the "physico-chemical" availability of P in the anaerobic bulk soil is strongly reduced. The decrease of P availability in the P-amended flooded bulk soil was mainly associated with the almost complete transformation of the precedingly enriched Al-P fraction into Fe-bound P with extremely low desorption/release characteristics during the subsequent flooding.
收录类别	SCI
WOS关键词	DRAINED SOILS ; LOWLAND RICE ; PHOSPHATE ; SORPTION ; BEHAVIOR ; ADSORPTION ; TRANSFORMATION ; DESORPTION ; RELEASE
WOS研究方向	Agriculture ; Plant Sciences
WOS类目	Agronomy ; Plant Sciences ; Soil Science
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000189158000010
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2559323
专题	南京土壤研究所
通讯作者	Werner, W
作者单位	1.Zhejiang Univ, Inst Agrochem, Hangzhou 310029, Peoples R China 2.Chinese Acad Sci, Nanjing Inst Soil Sci, Key Lab Mat Cycling Pedosphere, Nanjing 210008, Peoples R China 3.Univ Bonn, Inst Plant Nutr, D-53116 Bonn, Germany
推荐引用方式 GB/T 7714	Zhang, YS,Lin, XY,Werner, W. Effects of aerobic conditions in the rhizosphere of rice on the dynamics and availability of phosphorus in a flooded soil - A model experiment[J]. JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE-ZEITSCHRIFT FUR PFLANZENERNAHRUNG UND BODENKUNDE,2004,167(1):66-71.
APA	Zhang, YS,Lin, XY,&Werner, W.(2004).Effects of aerobic conditions in the rhizosphere of rice on the dynamics and availability of phosphorus in a flooded soil - A model experiment.JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE-ZEITSCHRIFT FUR PFLANZENERNAHRUNG UND BODENKUNDE,167(1),66-71.
MLA	Zhang, YS,et al."Effects of aerobic conditions in the rhizosphere of rice on the dynamics and availability of phosphorus in a flooded soil - A model experiment".JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE-ZEITSCHRIFT FUR PFLANZENERNAHRUNG UND BODENKUNDE 167.1(2004):66-71.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。