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| Cecílio Filho,Arthur B.; Rezende,Bráulio L.A.; Barbosa,José C.; Grangeiro,Leilson C.. |
| Four experiments were carried out at the São Paulo State University, Brazil, with the aim of determining the agronomic viability of intercropping tomato and lettuce, under greenhouse conditions. The studied intercropping systems were established by transplanting lettuce at 0, 10, 20 and 30 days after transplanting (DAT) tomato and by transplanting tomato at 0, 10, 20 and 30 DAT lettuce. Intercropped tomato and lettuce were evaluated during two seasons and compared to their sole cropping. The experimental design was a randomized complete block with nine treatments. The productivity and the classification of the tomato fruits were not influenced by having lettuce intercropped with it, but lettuce production was lowered when tomato was intercropped with it.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cropping systems; Greenhouse; Lactuca sativa; Solanum lycopersicon; Planting time. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000300029 |
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| Farrell, Terence C.. |
| Economic benefits that arise from conservation farming practices need to be assessed over several years to account for improvements in soil structure and nutrient levels. A gross margin model was used to assess benefits over the eight-year period 1999-2006 for 12 regions in the central west of NSW. The annual benefits from improved soil structure ranged from $2.46 to $12.82 per hectare (ha). A reduction in tractor power produced annual savings in the range of $0.60 to $4.05 per ha. The cost of soil compaction by livestock grazing on crop areas ranged from $3.41 to $14.90 per ha. The break-even time to pay back costs for the conversion of machinery for no-till seeding was two to three seasons. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: No-till; Conservation; Farming; Tillage; Cropping systems; Environmental Economics and Policy; Farm Management. |
| Ano: 2008 |
URL: http://purl.umn.edu/6177 |
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| Chan, Stephanie; Caldwell, Brian; Rickard, Bradley J.. |
| This paper provides an economic analysis that compares the profitability and land management capability of four different organic cropping systems used to produce winter squash (Cucurbita pepo cv. ‘Delicata’) and cabbage (Brassica oleracea var. capitata cv.’ Farao’). The organic cropping systems are part of a long term experiment designed for vegetable production in the Northeast, and designed to maintain ecological integrity and contribute to environmental stewardship. Our research addresses the causal chain from soil processes to economic outcomes including soil quality, efficiency in cycling of nutrients, off-farm impacts, pressures from weeds, insects and diseases, crop yield and quality, and marketing opportunities. Interactive crop budgets were... |
| Tipo: Working Paper |
Palavras-chave: Cropping systems; Economic analysis; Organic production; Sustainable agriculture; Vegetables.; Farm Management. |
| Ano: 2010 |
URL: http://purl.umn.edu/121652 |
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| Hignight, Jeffrey A.; Watkins, K. Bradley; Anders, Merle M.. |
| No-till (NT) has been shown to reduce fuel, labor, and machinery costs compared to conventional-till (CT) but very few rice producers in Arkansas practice NT. The low adoption rate is most likely due to difficulties in management but also limited information on the profitability and risk of NT. Most rice producers are knowledgeable on NT costs savings but consider it less profitable due to yield reductions offsetting costs savings. This study evaluates production costs, crop yields, and economic risk of both NT and CT in five rice-based cropping systems (continuous rice, rice-soybean, rice-corn, rice-wheat, and rice-wheat-soybean-wheat). Yields, crop prices, and key input prices are simulated to create net return distributions. Stochastic efficiency... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Cropping systems; Rice; No-till; Certainty equivalent; Risk premium; Crop Production/Industries; Farm Management; Financial Economics; Land Economics/Use; Production Economics; Risk and Uncertainty. |
| Ano: 2010 |
URL: http://purl.umn.edu/56354 |
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| OLIVEIRA, T. K. de; ARCO-VERDE, M. F.; SILVA, D. V. da; SANTOS, A. Q. dos. |
| As análises biofísicas voltadas para crescimento e produtividade dos componentes agroflorestais têm seu efeito potencializado quando acompanhadas de análises econômicas. Assim, faz-se necessário identificar e indicar modelos de sucesso já validados por produtores em campo. O objetivo deste trabalho foi realizar uma análise financeira de um consórcio agroflorestal conduzido no ramal Baixa Verde do projeto Reca, distrito de Nova Califórnia, município de Porto Velho ? RO. Os índices técnicos para o sistema agroflorestal em questão foram registrados sistematicamente pelos produtores em reunião técnica, considerando insumos, mão de obra e produtividade dos componentes, sendo utilizadas informações padronizadas ocorrentes na região para cada atividade realizada... |
| Tipo: Parte de livro |
Palavras-chave: Sistema Agroflorestal (SAF); Projeto RECA; Ramal Baixa Verde; Nova Califórnia (RO); Rondônia; Amazônia Ocidental; Cultivo mixto; Amazonia occidental; Análisis económico; Western amazon.; Sistema de cultivo; Consorciação de cultura; Análise econômica; Cropping systems; Mixed cropping; Economic analysis.. |
| Ano: 2016 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1064466 |
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| ARAÚJO NETO, S. E. de; SILVA, A. N. da; KUSDRA, J. F.; KOLLN, F. T.; ANDRADE NETO, R. de C.. |
| O objetivo deste trabalho foi avaliar o efeito de plantas de cobertura em cultivo consorciado de maracujá, abacaxi, mandioca e milho sobre a atividade biológica do solo em período chuvoso e de estiagem. O experimento foi conduzido em Rio Branco, Acre, em um ARGISSOLO AMARELO Alítico plíntico. O delineamento experimental utilizado foi o de blocos casualizados completos com parcelas subdivididas e quatro repetições. Nas parcelas foram estudadas épocas de avaliação (março, maio, agosto e outubro de 2011) e, nas subparcelas, plantas de cobertura [kudzu tropical (Pueraria phaseoloides), crotalaria (Crotalaria espectabilis), amendoim forrageiro (Arachis pintoi), feijão de porco (Canavalia ensiformis) e plantas espontâneas]. Foram avaliadas respiração (edáfica e... |
| Tipo: Artigo de periódico |
Palavras-chave: Yuca; Amendoim forrageiro; Crolatária; Rendimiento de los cultivos; Crolatária espectabilis; Produtividade da planta; Biología del suelo; Cultivo múltiple; Estación húmeda; Estación seca; Fecha de plantación; Granadillas; Leguminosas forrajeras; Maiz; Mercados de carbono; Piñas; Plantas de cobertura; Sistemas de cultivo.; Biologia do solo; Consorciação de cultura; Cultivo múltiplo; Maracujá; Passiflora edulis; Abacaxi; Ananás comosus; Milho; Zea mays; Mandioca; Manihot esculenta; Época de plantio; Chuva; Seca; Planta de cobertura; Leguminosa forrageira; Kudzu; Pueraria phaseoloides; Feijão de porco; Canavalia ensiformis; Dióxido de carbono.; Soil biology; Cropping systems; Multiple cropping; Crop yield; Passion fruits; Pineapples; Corn; Cassava; Planting date; Wet season; Dry season; Ground cover plants; Forage legumes; Carbon markets; Arachis pintoi.. |
| Ano: 2014 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/999682 |
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| Registros recuperados: 240 | |
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