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| Registros recuperados: 176 | |
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| Restrepo,Adriana P; García García,José; Moral,Raúl; Vidal,Fernando; Pérez-Murcia,María D; Bustamante,María Á; Paredes,Concepción. |
| A.P. Restrepo, J. Garcia-Garcia, R. Moral, F. Vidal, M.D. Pérez-Murcia, M.A. Bustamante, and C. Paredes. 2013. A comparative cost analysis for using compost derived from anaerobic digestion as a peat substitute in a commercial plant nursery. Cien. Inv. Agr. 40(2): 253-264. The aim of this study was to evaluate the economic feasibility of using compost made from anaerobically digested cattle slurries in a commercial nursery. Using a comparative cost analysis, commercial peat substrate growing media has been partially substituted with increasing proportions of compost (25, 50 and 75% v/v of compost). This experiment was intended to establish the conditions under which the use of these composts is feasible and competitive relative to commercial peat, at both... |
| Tipo: Journal article |
Palavras-chave: Anaerobic digestion; Costs; Economics; Growing media; Peat; Seedling production. |
| Ano: 2013 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202013000200002 |
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| Laws, J.A.; Williams, Robert J.; Pain, B.F.. |
| The financial implications of manipulating nitrogen (N) inputs and management strategies for beef production systems were assessed. One-hectare grassland farmlets were grazed to a target sward height by beef steers; herbage surplus to grazing requirements was cut for silage. Three systems were compared: ‘CN’, conventional mineral N application to a grass monoculture and broadcast slurry; ‘TN’, tactical mineral N application at fortnightly intervals to a grass monoculture with slurry injection and the early housing of cattle; ‘GC’, a mixed grass/white clover sward with no mineral N addition and slurry injection. Comparisons were made on two contrasting soil types: a freely-draining sandy loam (site 1) and a poorly drained clay (site 2). Financial budgets... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Farmlets; Systems; Beef cattle; Nitrogen; Slurry; Animal production; Economics; UK; Farm Management. |
| Ano: 2002 |
URL: http://purl.umn.edu/6962 |
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| Wang, Hua; Caffey, Rex H.; Petrolia, Daniel R.. |
| In the wake of Hurricane Katrina, the Louisiana Coastal Protection and Restoration Authority (CPRA) was established to integrate programs for habitat restoration and infrastructure protection. The Authority has begun aligning the state’s coastal spending to reflect increasing public interest in the restoration of surface acreage. Concurrent with these changes, programmatic emphasis has been placed on rapid land building (RLB) techniques that rely on mechanical dredges and sediment conveyance pipelines to build new land. The apparent costs and benefits of this approach are increasingly compared in the scientific community to more traditional and natural methods of restoration, such as freshwater diversions (DIV). Given limited state and federal budgets for... |
| Tipo: Presentation |
Palavras-chave: Coastal Restoration; Wetland; Economics; Benefit-Cost; Marsh Creation; Freshwater Diversion; Environmental Economics and Policy. |
| Ano: 2012 |
URL: http://purl.umn.edu/119740 |
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| Olson, Kent D.; Elisabeth, Pascal. |
| The full impact of an investment in a management information system (MIS), such as precision agriculture (PA), comes from improved managerial decision making throughout the whole farm and not just from improvements in a specific part of the farm. This study was conducted to determine whether the adoption of PA had a positive impact on whole-farm profitability. To overcome problems of simultaneity and self-selection in the adoption decision of PA, this study used a two stage econometric model using data from farms in Southwest Minnesota. The PA adoption decision was evaluated in the first stage, and the impact of adopting PA was evaluated in the second stage. The whole farm rate of return to assets (ROA) was used to measure the impact of PA. For all 212... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Precision agriculture; Economics; Adoption; Profitability; Agribusiness. |
| Ano: 2003 |
URL: http://purl.umn.edu/22119 |
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| MacLeod, Neil D.; Wen, Shilin; Hu, Mingwen. |
| The rapidly growing beef cattle herd of the Peoples Republic of China is largely carried as small numbers of animals on smallholder farms. These enterprises have traditionally focussed on cereal and vegetable crops. Limited plantings of specialised forages combined with a poor knowledge of ruminant nutrition by sm allholder farmers represent a serious challenge to establishing genuinely sustainable beef enterprises for this sector. Government policy to promote beef cattle production on smallholder farms is now focussing on the use of new forages and improved feeding practices. The paper draws on some economic insights from an Australian Centre for International Agricultural Research (ACIAR) project that is exploring options for integrating the planting and... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Beef cattle; Forages; Red Soils Region; China; Economics; Livestock Production/Industries; 03; Q12; Q16. |
| Ano: 2006 |
URL: http://purl.umn.edu/25588 |
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| Registros recuperados: 176 | |
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