Integrating legacy soil phosphorus into sustainable nutrient management strategies for future food, bioenergy and water security

Rowe, H; Withers, PJA; Baas, P; Chan, NI; Doody, D; Holiman, J; Jacobs, B; Li, H; MacDonald, GK; McDowell, R; Sharpley, AN; Shen, J; Taheri, W; Wallenstein, M; Weintraub, MN

Integrating legacy soil phosphorus into sustainable nutrient management strategies for future food, bioenergy and water security

Rowe, H Withers, PJA Baas, P Chan, NI Doody, D Holiman, J Jacobs, B

Li, H MacDonald, GK McDowell, R Sharpley, AN Shen, J Taheri, W Wallenstein, M Weintraub, MN

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Publication Type:: Journal Article
Citation:: Nutrient Cycling in Agroecosystems, 2016, 104 (3), pp. 393 - 412
Issue Date:: 2016-04-01

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Field	Value	Language
dc.contributor.author	Rowe, H	en_US
dc.contributor.author	Withers, PJA	en_US
dc.contributor.author	Baas, P	en_US
dc.contributor.author	Chan, NI	en_US
dc.contributor.author	Doody, D	en_US
dc.contributor.author	Holiman, J	en_US
dc.contributor.author	Jacobs, B https://orcid.org/0000-0003-3147-341X	en_US
dc.contributor.author	Li, H	en_US
dc.contributor.author	MacDonald, GK	en_US
dc.contributor.author	McDowell, R	en_US
dc.contributor.author	Sharpley, AN	en_US
dc.contributor.author	Shen, J	en_US
dc.contributor.author	Taheri, W	en_US
dc.contributor.author	Wallenstein, M	en_US
dc.contributor.author	Weintraub, MN	en_US
dc.date.issued	2016-04-01	en_US
dc.identifier.citation	Nutrient Cycling in Agroecosystems, 2016, 104 (3), pp. 393 - 412	en_US
dc.identifier.issn	1385-1314	en_US
dc.identifier.uri	http://hdl.handle.net/10453/37504
dc.description.abstract	© 2015, Springer Science+Business Media Dordrecht. Legacy phosphorus (P) that has accumulated in soils from past inputs of fertilizers and manures is a large secondary global source of P that could substitute manufactured fertilizers, help preserve critical reserves of finite phosphate rock to ensure future food and bioenergy supply, and gradually improve water quality. We explore the issues and management options to better utilize legacy soil P and conclude that it represents a valuable and largely accessible P resource. The future value and period over which legacy soil P can be accessed depends on the amount present and its distribution, its availability to crops and rates of drawdown determined by the cropping system. Full exploitation of legacy P requires a transition to a more holistic system approach to nutrient management based on technological advances in precision farming, plant breeding and microbial engineering together with a greater reliance on recovered and recycled P. We propose the term ‘agro-engineering’ to encompass this integrated approach. Smaller targeted applications of fertilizer P may still be needed to optimize crop yields where legacy soil P cannot fully meet crop demands. Farm profitability margins, the need to recycle animal manures and the extent of local eutrophication problems will dictate when, where and how quickly legacy P is best exploited. Based on our analysis, we outline the stages and drivers in a transition to the full utilization of legacy soil P as part of more sustainable regional and global nutrient management.	en_US
dc.relation.ispartof	Nutrient Cycling in Agroecosystems	en_US
dc.relation.isbasedon	10.1007/s10705-015-9726-1	en_US
dc.subject.classification	Agronomy & Agriculture	en_US
dc.title	Integrating legacy soil phosphorus into sustainable nutrient management strategies for future food, bioenergy and water security	en_US
dc.type	Journal Article
utslib.citation.volume	3	en_US
utslib.citation.volume	104	en_US
utslib.for	0503 Soil Sciences	en_US
utslib.for	0703 Crop and Pasture Production	en_US
utslib.for	0301 Analytical Chemistry	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/DVC (Research)
pubs.organisational-group	/University of Technology Sydney/DVC (Research)/Institute For Sustainable Futures
pubs.organisational-group	/University of Technology Sydney/Strength - ISF - Institute for Sustainable Futures
utslib.copyright.status	closed_access
pubs.issue	3	en_US
pubs.publication-status	Published	en_US
pubs.volume	104	en_US

Abstract:

© 2015, Springer Science+Business Media Dordrecht. Legacy phosphorus (P) that has accumulated in soils from past inputs of fertilizers and manures is a large secondary global source of P that could substitute manufactured fertilizers, help preserve critical reserves of finite phosphate rock to ensure future food and bioenergy supply, and gradually improve water quality. We explore the issues and management options to better utilize legacy soil P and conclude that it represents a valuable and largely accessible P resource. The future value and period over which legacy soil P can be accessed depends on the amount present and its distribution, its availability to crops and rates of drawdown determined by the cropping system. Full exploitation of legacy P requires a transition to a more holistic system approach to nutrient management based on technological advances in precision farming, plant breeding and microbial engineering together with a greater reliance on recovered and recycled P. We propose the term ‘agro-engineering’ to encompass this integrated approach. Smaller targeted applications of fertilizer P may still be needed to optimize crop yields where legacy soil P cannot fully meet crop demands. Farm profitability margins, the need to recycle animal manures and the extent of local eutrophication problems will dictate when, where and how quickly legacy P is best exploited. Based on our analysis, we outline the stages and drivers in a transition to the full utilization of legacy soil P as part of more sustainable regional and global nutrient management.

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http://hdl.handle.net/10453/37504