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| Haque, Mohua; Biermacher, Jon T.; Kering, Maru K.; Guretzky, John A.. |
| There is limited information available explaining the agronomic and economic relationships between yield and nitrogen and phosphorus applications to growing switchgrass produced in phosphorus-deficient soils. The objective of this study was to determine the effects of nitrogen and phosphorus fertilizers on feedstock yield and measures of expected total cost, gross revenue, net return, and breakeven price of feedstock produced in phosphorus-deficient soils in the southern Great Plains. Data were collected from a three-year, two-location agronomic field study conducted in south-central Oklahoma. Two discrete nitrogen treatments (0 and 134 kg ha-1) and four discrete phosphorus treatments (0, 30, 60 and 90 kg ha-1) were randomly assigned to small plots... |
| Tipo: Presentation |
Palavras-chave: Bioenergy feedstock; Economics; Phosphorus-deficient soils; Nitrogen; Switchgrass; Crop Production/Industries; Environmental Economics and Policy; Production Economics. |
| Ano: 2012 |
URL: http://purl.umn.edu/119765 |
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| Cherubin,Maurício Roberto; Oliveira,Dener Márcio da Silva; Feigl,Brigitte Josefine; Pimentel,Laisa Gouveia; Lisboa,Izaias Pinheiro; Gmach,Maria Regina; Varanda,Letícia Leal; Morais,Maristela Calvente; Satiro,Lucas Santos; Popin,Gustavo Vicentini; Paiva,Sílvia Rodrigues de; Santos,Arthur Klebson Belarmino dos; Vasconcelos,Ana Luisa Soares de; Melo,Paul Lineker Amaral de; Cerri,Carlos Eduardo Pellegrino; Cerri,Carlos Clemente. |
| ABSTRACT: 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 residues can induce deleterious effects on soil functioning, plant growth and other ecosystem services. Here, we have summarized the information available in the literature to identify and discuss the main trade-offs and synergisms involved in crop residue management for bioenergy production. The data consistently showed that crop residue harvest and the consequent lower input of organic matter into the soil led to C storage depletions over time, reducing cycling, supply and availability of soil nutrients, directly affecting the soil biota. Although the biota regulates key... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bioenergy feedstock; Soil quality; Sugarcane; Greenhouse gas emissions. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162018000300255 |
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