Improving phosphorus sustainability of sugarcane production in Brazil.

Autor: Soltangheisi A; Laboratory of Isotope Ecology Center for Nuclear Energy in Agriculture University of São Paulo Piracicaba Brazil., Withers PJA; Lancaster Environment Centre Lancaster University Lancaster UK., Pavinato PS; Department of Soil Science Escola Superior de Agricultura Luiz de Queiroz University of São Paulo Piracicaba Brazil., Cherubin MR; Department of Soil Science Escola Superior de Agricultura Luiz de Queiroz University of São Paulo Piracicaba Brazil., Rossetto R; Agência Paulista de Tecnologia dos Agronegócio Piracicaba Brazil., Do Carmo JB; Department of Environmental Sciences Federal University of São Carlos Sorocaba Brazil., da Rocha GC; Faculdade de Ciências Agronômicas Universidade Estadual Paulista Botucatu Brazil., Martinelli LA; Laboratory of Isotope Ecology Center for Nuclear Energy in Agriculture University of São Paulo Piracicaba Brazil.
Jazyk: angličtina
Zdroj: Global change biology. Bioenergy [Glob Change Biol Bioenergy] 2019 Dec; Vol. 11 (12), pp. 1444-1455. Date of Electronic Publication: 2019 Oct 18.
DOI: 10.1111/gcbb.12650
Abstrakt: Phosphorus (P) use in global food and bioenergy production needs to become more efficient and sustainable to reduce environmental impacts and conserve a finite and critical resource (Carpenter & Bennett, Environmental Research Letters , 2011, 6 , 014009; Springmann et al., Nature , 2018, 562 , 519). Sugarcane is one crop with a large P footprint because production is centered on P-fixing soils with low P availability (Roy et al., Nature Plants , 2016, 2 , 16043; Withers et al., Scientific Reports , 2018, 8 , 2537). As global demand for processed sugar and bioethanol continues to increase, we advocate that improving P efficiency could become a key sustainability goal for the sugarcane industry. Here, we applied the 5R global P stewardship framework (Withers et al., Ambio , 2015, 44 , 193) to identify more sustainable options to manage P in Brazilian sugarcane production. We show that current inputs of P fertilizer to the current crop area could be reduced by over 305 Gg, or 63%, over the next three decades by reducing unnecessary P fertilizer use, better utilization of recyclable bioresources and redesigning recommendation systems. Adoption of these 5R options would save the sugarcane industry in Brazil 528 US$ million and help safeguard global food and energy security.
(© 2019 The Authors. GCB Bioenergy Published by John Wiley & Sons Ltd.)
Databáze: MEDLINE
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