The interaction of phosphate and selenite in alkaline soil and accumulation by alfalfa (Medicago sativa L.)

doi:10.1080/03650340.2020.1718112

	The interaction of phosphate and selenite in alkaline soil and accumulation by alfalfa (Medicago sativa L.)
	Peng, Qi 1,3; He, Honghua 2,3; Fan, Chenbin 2; Wu, Miaomiao 2; Guo, Lei 2; Wang, Xia 1,3; Zhang, Xingchang 2,3
刊名	ARCHIVES OF AGRONOMY AND SOIL SCIENCE
	2020-02-06
页码	14
关键词	Alfalfa (Medicago sativa) Phosphorus Selenium Accumulation Fraction
ISSN号	0365-0340
DOI	10.1080/03650340.2020.1718112
通讯作者	He, Honghua(honghuahe@ms.iswc.ac.cn) ; Zhang, Xingchang(zxc@xab.ac.cn)
英文摘要	Selenium (Se) is an essential nutrient for humans and animals, but is toxic at high concentrations in leaves. It is chemically similar to phosphorus (P), an essential plant macronutrient. The objective of this pot experiment was to investigate the effects of P- and Se-application rate on alfalfa growth and P and Se uptake in loessial soil, and reveal the changing processes of soil P and Se fractions. The results indicated that Se concentration in alfalfa was significantly influenced by the interaction of P- and Se-application rate. In the loessial soil, an optimal P- and Se-application rate is 5 mg kg(-1) and 2 mg kg(-1), respectively for plant growth and the maximum P and Se accumulation in alfalfa. Besides, concentrations of exchangeable Se and organic-matter-bound Se in soil decreased, as the P-application rate increased, whereas concentrations of soluble Se and iron oxide-bound Se increased. The addition of P fertilizer reduced soil pH, affecting the changing processes of soil P and Se fractions, thus promoting the activation of Fe-P and the transformation of exchangeable Se to iron oxide-bound Se. These findings will help in understanding of forage P and Se accumulation and provide the guide for cultivating Se-enriched forage.
WOS关键词	PLANT AVAILABILITY ; PHOSPHORUS ; SPECIATION ; SELENATE ; SYSTEM ; GROWTH ; WHEAT ; BIOAVAILABILITY ; AGRICULTURE ; EFFICIENCY
WOS研究方向	Agriculture
语种	英语
出版者	TAYLOR & FRANCIS LTD
WOS记录号	WOS:000512913200001
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/132159]
专题	中国科学院地理科学与资源研究所
通讯作者	He, Honghua; Zhang, Xingchang
作者单位	1.Univ Chinese Acad Sci, Beijing, Peoples R China 2.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling, Shaanxi, Peoples R China 3.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Peng, Qi,He, Honghua,Fan, Chenbin,et al. The interaction of phosphate and selenite in alkaline soil and accumulation by alfalfa (Medicago sativa L.)[J]. ARCHIVES OF AGRONOMY AND SOIL SCIENCE,2020:14.
APA	Peng, Qi.,He, Honghua.,Fan, Chenbin.,Wu, Miaomiao.,Guo, Lei.,...&Zhang, Xingchang.(2020).The interaction of phosphate and selenite in alkaline soil and accumulation by alfalfa (Medicago sativa L.).ARCHIVES OF AGRONOMY AND SOIL SCIENCE,14.
MLA	Peng, Qi,et al."The interaction of phosphate and selenite in alkaline soil and accumulation by alfalfa (Medicago sativa L.)".ARCHIVES OF AGRONOMY AND SOIL SCIENCE (2020):14.