Journal ArticleDOI
Sugarcane straw availability, quality, recovery and energy use: A literature review
Manoel Regis Lima Verde Leal,Marcelo Valadares Galdos,Fábio Vale Scarpare,Joaquim E. A. Seabra,Arnaldo Walter,Camila Ortolan Fernandes de Oliveira +5 more
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TLDR
In this paper, the authors shed some light into this subject to help the understanding of the importance of the various impacts of the straw blanket on the ground, the availability and quality of straw, the economics of straw recovery and use and the main criteria for determining the amount of straw that can be recovered for bioenergy or biofuels production.Abstract:
Sugarcane straw represents, under Brazilian conditions, approximately one third of the total primary energy of sugarcane in the field. Today, its use for energy is incipient and it is mostly wasted by either burning in the pre-harvest or left on the ground to decay. Besides its potential use as feedstock for energy production, there are several possible agronomic benefits of the straw blanket left on the ground such as soil protection against erosion, increase of soil organic carbon content, inhibition of weed growth, nutrient recycling and reduction of soil water losses, to name a few. The balance of the impacts and the economic and energetic value of the straw indicate that the amount of the straw left on the ground that could be considered optimal is dependent on the local conditions, agricultural practices, characteristics of the straw and intended final use. This work is meant to shed some light into this subject to help the understanding of the importance of the various impacts of the straw blanket on the ground, the availability and quality of the straw, the economics of straw recovery and use and the main criteria for determining the amount of straw that can be recovered for bioenergy or biofuels production.read more
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Journal ArticleDOI
Sustainability of sugarcane production in Brazil. A review
Ricardo de Oliveira Bordonal,João Luís Nunes Carvalho,Rattan Lal,Eduardo Barretto de Figueiredo,Bruna Gonçalves de Oliveira,Newton La Scala +5 more
TL;DR: In this article, a comprehensive review of the state-of-the-knowledge and the main advances made thus far in the sugarcane sector is presented, where the authors review the major environmental impacts of rapidly expanding sugarcANE plantations on the land use change and its competition with food production, as well as those associated with sugarcaine cultivation in Brazil.
Journal ArticleDOI
Agronomic and environmental implications of sugarcane straw removal: a major review
João Luís Nunes Carvalho,Roberta Corrêa Nogueirol,Lauren Maine Santos Menandro,Ricardo de Oliveira Bordonal,Clovis Daniel Borges,Heitor Cantarella,Henrique Coutinho Junqueira Franco +6 more
TL;DR: In this article, the authors present a synthesis of available information on the magnitude of the main impacts of straw removal from sugarcane fields for bioenergy production and therefore represent an easily available resource to guide management decisions on the recommended amount of straw to be maintained on the field to take advantage of the agronomic, environmental, and industrial benefits.
Journal ArticleDOI
Crop residue harvest for bioenergy production and its implications on soil functioning and plant growth: A review
Maurício Roberto Cherubin,Dener Márcio da Silva Oliveira,Brigitte Josefine Feigl,Laisa Gouveia Pimentel,Izaias Pinheiro Lisboa,Maria Regina Gmach,Letícia L. Varanda,Maristela Calvente Morais,Lucas Santos Satiro,Gustavo Vicentini Popin,Sílvia Rodrigues de Paiva,Arthur Klebson Belarmino dos Santos,Ana Luisa Soares Vasconcelos,Paul L. A. Melo,Carlos Eduardo Pellegrino Cerri,Carlos Clemente Cerri +15 more
TL;DR: The use of crop residues as a bioenergy feedstock is considered a potential strategy to mitigate greenhouse gas (GHG) emissions However, indiscriminate harvesting of crop residue can induce deleterious effects on soil functioning, plant growth and other ecosystem services as discussed by the authors.
Journal ArticleDOI
Transitions to sustainable management of phosphorus in Brazilian agriculture
Paul J. A. Withers,Marcos Rodrigues,Marcos Rodrigues,Amin Soltangheisi,Teotonio Soares de Carvalho,Luiz Roberto Guimarães Guilherme,Vinicius de Melo Benites,Luciano Colpo Gatiboni,Djalma Martinhão Gomes de Sousa,Rafael de Souza Nunes,Ciro Antonio Rosolem,Fernando Dini Andreote,Adilson de Oliveira,Edson Luiz Mendes Coutinho,Paulo Sergio Pavinato +14 more
TL;DR: A new strategic analysis of current and future P demand/supply concluded that the nation’s secondary P resources which are produced annually could potentially provide up to 20% of crop P demand by 2050 with further investment in P recovery technologies.
Journal ArticleDOI
Biogas Production from Sugarcane Waste: Assessment on Kinetic Challenges for Process Designing.
Leandro Janke,Athaydes Francisco Leite,Marcell Nikolausz,Thomas J. Schmidt,Jan Liebetrau,Michael Nelles,Walter Stinner +6 more
TL;DR: Methane yields varied considerably and a large-scale, continuous stirred-tank reactor with long hydraulic retention times (>35 days) should be used for biogas production from bagasse and straw, coupled with pre-treatment process to enhance the degradation of the fibrous carbohydrates.
References
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Journal ArticleDOI
Stabilization mechanisms of soil organic matter: Implications for C-saturation of soils
TL;DR: The relationship between soil structure and the ability of soil to stabilize soil organic matter (SOM) is a key element in soil C dynamics that has either been overlooked or treated in a cursory fashion when developing SOM models as discussed by the authors.
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Environmental soil physics
TL;DR: In this article, the authors present a basic relationship between water and soil properties, including the properties of water in relation to porous media, properties of soil structure and aggregation, and the potential of Soil Water.
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Soil invertebrates and ecosystem services
Patrick Lavelle,Thibaud Decaëns,Michaël Aubert,Sébastien Barot,Manuel Blouin,Fabrice Bureau,Pierre Margerie,Philippe Mora,Jean-Pierre Rossi +8 more
TL;DR: In this article, a comprehensive analysis of invertebrate activities shows that they may be the best possible indicators of soil quality, and they should also be considered as a resource that needs to be properly managed to enhance ecosystem services provided by agro-ecosystems.
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Energy and environmental aspects of using corn stover for fuel ethanol.
John Sheehan,Andy Aden,Keith Paustian,K. Killian,John Brenner,Marie E. Walsh,Richard G. Nelson +6 more
TL;DR: In this article, a life cycle model for collecting corn stover in the state of Iowa, in the Midwest of the United States, for the production and use of a fuel mixture consisting of 85% ethanol/15% gasoline (known as “E85”) in a flexible-fuel light-duty vehicle was constructed.
Journal ArticleDOI
Crop and Soil Productivity Response to Corn Residue Removal: A Literature Review
TL;DR: In this paper, the authors summarize published works for potential impacts of wide-scale, corn stover collection on corn production capacity in Corn Belt soils and conclude that within limits, corn Stover can be harvested for ethanol production to provide a renewable, domestic source of energy that reduces greenhouse gases.