Publication type: Book part
Type of review: Editorial review
Title: Use: what is needed to support sustainability?
Authors: Mikkelsen, Robert
Binder, Claudia
Frossard, Emmanuel
Brand, Fridolin S.
Scholz, Roland
Ulli, Vilsmaier
et. al: No
DOI: 10.1007/978-94-007-7250-2
Published in: Sustainable phosphorus management : a global transdisciplinary roadmap
Editors of the parent work: Scholz, Roland
Roy, A.H.
Brand, Fridolin S.
Hellums, D.
Ulrich, A.E.
Pages: 207
Pages to: 246
Issue Date: 1-Mar-2014
Publisher / Ed. Institution: Springer
Publisher / Ed. Institution: Dordrecht
ISBN: 978-94-007-7250-2
978-94-007-7249-6
Language: English
Subject (DDC): 333: Economics of land and resources
Abstract: Increased demands for agricultural output per unit of land area must be met in a way that encourages improved efficiency and better stewardship of natural resources, including phosphate rock. Modern crops remove between 5 and 35 kg P/ha, with P removal exceeding 45 kg P/ha for high-yielding maize. In situations such as Sub-Saharan Africa, where soil fertility is low and P removal exceeds average inputs of 2 kg P/ha/year, the resulting nutrient depletion severely restricts yields (e.g., maize yields < 1,000 kg/ha/year) and accelerates soil degradation. In other regions, excessive P inputs produce economic inefficiencies and increase the risk of P loss, with negative environmental consequences. During the year of application, plants recover 15–25 % of the added P, with the remaining fraction converting to less soluble forms or residual P which becomes plant available over time. Improving P efficiency requires a balance between the imperatives to produce more food while minimizing P losses. Utilizing transdisciplinary approaches, a number of social, economic, and environmental goals can be simultaneously achieved if progress is made toward short- and long-term food security and global P sustainability. This chapter provides an overview of efforts to improve P use efficiency in agriculture ranging from promising germplasm, improved crop, and soil management scenarios, additives in animal diets to reduce P inputs and surplus P in the manure, and opportunities for P recycling in food and household waste. Challenges and opportunities associated with each option are discussed and transdisciplinary case studies outlined.
URI: https://digitalcollection.zhaw.ch/handle/11475/17996
Fulltext version: Published version
License (according to publishing contract): Licence according to publishing contract
Departement: School of Management and Law
Organisational Unit: International Management Institute (IMI)
Appears in Collections:Publikationen School of Management and Law

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