Strong phosphorus (P)-zinc (Zn) interactions in a calcareous soil-alfalfa system suggest that rational P fertilization should be considered for Zn biofortification on Zn-deficient soils and phytoremediation of Zn-contaminated soils

doi:10.1007/s11104-020-04793-w

	Strong phosphorus (P)-zinc (Zn) interactions in a calcareous soil-alfalfa system suggest that rational P fertilization should be considered for Zn biofortification on Zn-deficient soils and phytoremediation of Zn-contaminated soils
	He, Honghua 2,3,4,5; Wu, Miaomiao 3; Su, Rui 3; Zhang, Zekun 3; Chang, Chao 3; Peng, Qi 1,4; Dong, Zhigang 2,4; Pang, Jiayin 6,7; Lambers, Hans 5,7,8
刊名	PLANT AND SOIL
	2021-01-19
页码	15
关键词	DTPA-extractable Zn Medicago sativa Partitioning Rhizosheath carboxylates Rhizosheath pH
ISSN号	0032-079X
DOI	10.1007/s11104-020-04793-w
通讯作者	He, Honghua(honghuahe@ms.iswc.ac.cn)
英文摘要	Aims Zinc (Zn) and phosphorus (P) often interact negatively with each other in soil-plant systems. We investigated the effects of P-Zn interaction on Zn and P accumulation and partitioning in alfalfa. Methods Plants were grown in a calcareous soil supplied with different rates of Zn (0, 200, and 800 mg kg(-1)) and P (0, 20, and 80 mg kg(-1)). Plant dry mass, Zn and P concentrations in shoots and roots, bulk soil and rhizosheath pH, rhizosheath carboxylates, and DTPA-extractable Zn concentration in the bulk soil were determined. Results Phosphorus-Zn interaction significantly affected DTPA-extractable Zn concentration, plant dry mass, accumulation of Zn and P, and partitioning of Zn in alfalfa, but did not affect rhizosheath pH or the amounts of rhizosheath carboxylates. Increasing P rate promoted plant growth at all soil Zn rates and might enhance the plants' capacity to cope with excessive Zn; it resulted in a lower rhizosheath pH, which likely contributed to greater Zn and P uptake. Zinc deficiency enhanced exudation of citrate, malonate and malate, while the release of tartrate was related with P deficiency. Conclusions There are strong P-Zn interactions in calcareous soil-plant system, such interactions significantly affect Zn bioavailability, plant growth, accumulation of Zn and P, and partitioning of Zn in alfalfa. Rational P fertilization should be considered for efficient Zn biofortification on Zn-deficient soils and phytoremediation of Zn-contaminated soils.
资助项目	National Key Research and Development Plan of China[2017YFC0504504] ; Natural Science Basic Research Program of Shaanxi Province[2019JM-411] ; National Natural Science Foundation of China[41301570]
WOS研究方向	Agriculture ; Plant Sciences
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000608962200003
资助机构	National Key Research and Development Plan of China ; Natural Science Basic Research Program of Shaanxi Province ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/136195]
专题	中国科学院地理科学与资源研究所
通讯作者	He, Honghua
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 3.Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R China 4.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China 5.Univ Western Australia, Sch Biol Sci, Perth, WA 6001, Australia 6.Univ Western Australia, UWA Sch Agr & Environm, Perth, WA 6001, Australia 7.Univ Western Australia, UWA Inst Agr, Perth, WA 6001, Australia 8.China Agr Univ, Dept Plant Nutr, Beijing 100193, Peoples R China
推荐引用方式 GB/T 7714	He, Honghua,Wu, Miaomiao,Su, Rui,et al. Strong phosphorus (P)-zinc (Zn) interactions in a calcareous soil-alfalfa system suggest that rational P fertilization should be considered for Zn biofortification on Zn-deficient soils and phytoremediation of Zn-contaminated soils[J]. PLANT AND SOIL,2021:15.
APA	He, Honghua.,Wu, Miaomiao.,Su, Rui.,Zhang, Zekun.,Chang, Chao.,...&Lambers, Hans.(2021).Strong phosphorus (P)-zinc (Zn) interactions in a calcareous soil-alfalfa system suggest that rational P fertilization should be considered for Zn biofortification on Zn-deficient soils and phytoremediation of Zn-contaminated soils.PLANT AND SOIL,15.
MLA	He, Honghua,et al."Strong phosphorus (P)-zinc (Zn) interactions in a calcareous soil-alfalfa system suggest that rational P fertilization should be considered for Zn biofortification on Zn-deficient soils and phytoremediation of Zn-contaminated soils".PLANT AND SOIL (2021):15.