Imprint of crop choice on global nutrient needs

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IDL-54831.pdf (739.45 KB)

Date

2014

Authors

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Volume Title

Publisher

IOP Publishing

Abstract

Future changes in crop composition could contribute to more sustainable food systems, optimizing land and fertilizer use. Changes in crop composition strongly affect how much soil nutrients need to be withdrawn per unit of food output. The paper explores three aspects of major global crops and to what extent crop choice offers the potential to increase food outputs at a faster rate than soil nutrient withdrawals and fertilizer use on the same available land. While soil nutrient needs shift in response to basic biological attributes of crops; fertilizer additions are more dependent on the economic context of crop production.

Description

Keywords

LAND USE, FERTILIZERS, CROP MANAGEMENT, SOIL COMPOSITION, SOIL DEGRADATION, MATHEMATICAL MODELS, FOOD SECURITY, ECOSYSTEMS, GLOBAL, AGROECOLOGY, ENVIRONMENTAL DEGRADATION

Citation

Jobbágy, E.G., & Sala, O.E. (2014). The imprint of crop choice on global nutrient needs. Environmental Research Letters, 9, 1-10. doi:10.1088/1748-9326/9/8/084014

URI

http://hdl.handle.net/10625/54831

DOI

Collections

IDRC Research Results / Résultats de recherches du CRDI
2010-2019 / Années 2010-2019
Research Results (CCW) / Résultats de recherches (CCE)