Mass balance assessment of phosphorus dynamics in a fertilizer trial with 57 years of superphosphate application under irrigated grazed pasture

doi:10.1007/s10705-019-09992-1

	Mass balance assessment of phosphorus dynamics in a fertilizer trial with 57 years of superphosphate application under irrigated grazed pasture
	Wakelin, Steven 6; Tian, Jihui 1,2,3; Boitt, Gustavo 4; Black, Amanda 5; Chen, Lijun 1; Cai, Kunzheng 2; Condron, Leo 4
刊名	NUTRIENT CYCLING IN AGROECOSYSTEMS
	2019-05-01
卷号	114 期号:1 页码:33-44
关键词	Phosphorus fate Legacy phosphorus Phosphorus use efficiency Long-term field trial Soil profile
ISSN号	1385-1314
DOI	10.1007/s10705-019-09992-1
英文摘要	Improving the efficiency of phosphorus (P) use is a major challenge for agricultural production and sustainability. Using a combination of new and historic data, a mass balance approach was employed to construct and discuss a comprehensive P budget under temperate irrigated grazed pasture that had received different inputs of superphosphate fertilizer for 57 years [nil (Control), 188 kg ha(-1 )(188PA) and 376 kg ha(-1) (376PA)]. Most (97-99%) of the applied P was accounted for in soil storage, plant residues, removal in animal products, excretal transfers, losses via irrigation outwash, rainfall runoff and leaching in the soil-plant-animal system. Management of soil available P that exceed the critical level 17-22 mg L-1) for optimal pasture production can result in low P balance efficiency and excessive soil legacy P in the soil profile (0-1 m). Results of this study revealed that accumulation of P in soil and plants (68-80%), P losses by irrigation outwash (8-11%), and excretal transfers to stock camps (6-12%) were important factors that determined applied P use efficiency. These findings highlight the need to apply appropriate quantities of P fertilizer to maintain optimal soil P fertility, plant growth, and animal production, together with enhanced utilization of accumulated soil P and reduced P transfer in drainage.
资助项目	Integrated Demonstration of Key Techniques for the Industrial Development of Featured Crops in Rocky Desertification Areas of Yunnan-Guangxi-Guizhou Provinces ; Agricultural and Marketing Research and Development Trust (AGMARDT) ; New Zealand Ministry of Agriculture and Forestry, and Environment Canterbury
WOS研究方向	Agriculture
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000464897800003
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/124011]
专题	中国科学院沈阳应用生态研究所
通讯作者	Tian, Jihui
作者单位	1.Chinese Acad Sci, Inst Appl Ecol, POB 417, Shenyang 110016, Liaoning, Peoples R China 2.South China Agr Univ, Coll Nat Resources & Environm, Guangzhou 510642, Guangdong, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Lincoln Univ, Dept Soil Sci, Fac Agr & Life Sci, POB 85084, Christchurch 7647, New Zealand 5.Lincoln Univ, Bioprotect Res Ctr, POB 85084, Christchurch 7647, New Zealand 6.Scion Res, Dept Forest Syst, POB 29237, Christchurch 8540, New Zealand
推荐引用方式 GB/T 7714	Wakelin, Steven,Tian, Jihui,Boitt, Gustavo,et al. Mass balance assessment of phosphorus dynamics in a fertilizer trial with 57 years of superphosphate application under irrigated grazed pasture[J]. NUTRIENT CYCLING IN AGROECOSYSTEMS,2019,114(1):33-44.
APA	Wakelin, Steven.,Tian, Jihui.,Boitt, Gustavo.,Black, Amanda.,Chen, Lijun.,...&Condron, Leo.(2019).Mass balance assessment of phosphorus dynamics in a fertilizer trial with 57 years of superphosphate application under irrigated grazed pasture.NUTRIENT CYCLING IN AGROECOSYSTEMS,114(1),33-44.
MLA	Wakelin, Steven,et al."Mass balance assessment of phosphorus dynamics in a fertilizer trial with 57 years of superphosphate application under irrigated grazed pasture".NUTRIENT CYCLING IN AGROECOSYSTEMS 114.1(2019):33-44.