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Registro Completo |
Biblioteca(s): |
Embrapa Hortaliças. |
Data corrente: |
25/10/2006 |
Data da última atualização: |
25/10/2006 |
Autoria: |
REINIGER, L. R. S.; LOPES, S. J.; COCCO, C.; MANFIO, C. E.; ZALAMENA, J.; REDIN, M. |
Título: |
Conservação in vitro de batata (Solanum tuberosum L.) sob baixa temperatura. |
Ano de publicação: |
2006 |
Fonte/Imprenta: |
Revista Cientifica Rural, Bagé, v. 11, n. 1, p.126-132, 2006. |
Idioma: |
Português |
Palavras-Chave: |
Conservação in vitro; Cultivar Macaca; Cultura de tecidos. |
Thesagro: |
Batata; Solanum Tuberosum; Temperatura. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00683naa a2200241 a 4500 001 1779626 005 2006-10-25 008 2006 bl uuuu u00u1 u #d 100 1 $aREINIGER, L. R. S. 245 $aConservação in vitro de batata (Solanum tuberosum L.) sob baixa temperatura. 260 $c2006 650 $aBatata 650 $aSolanum Tuberosum 650 $aTemperatura 653 $aConservação in vitro 653 $aCultivar Macaca 653 $aCultura de tecidos 700 1 $aLOPES, S. J. 700 1 $aCOCCO, C. 700 1 $aMANFIO, C. E. 700 1 $aZALAMENA, J. 700 1 $aREDIN, M. 773 $tRevista Cientifica Rural, Bagé$gv. 11, n. 1, p.126-132, 2006.
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Embrapa Hortaliças (CNPH) |
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Registro Completo
Biblioteca(s): |
Embrapa Florestas. |
Data corrente: |
24/06/2021 |
Data da última atualização: |
24/06/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
PONTES, L. da S.; PORFIRIO-DA-SILVA, V.; MOLETTA, J. L.; TELLES, T. S. |
Afiliação: |
LAÍSE DA SILVEIRA PONTES, IAPAR-EMATER; VANDERLEY PORFIRIO DA SILVA, CNPF; JOSÉ LUIZ MOLETTA, IAPAR-EMATER; TIAGO SANTOS TELLES, IAPAR-EMATER. |
Título: |
Long-term profitability of crop-livestock systems, with and without trees. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Agricultural Systems, v. 192, 103204, Aug. 2021. 13 p. |
DOI: |
https://doi.org/10.1016/j.agsy.2021.103204 |
Idioma: |
Inglês |
Conteúdo: |
CONTEXT Integrated crop-livestock systems have been encouraged worldwide as they align with the principles of cleaner production. However, studies on these systems have mainly explored agronomic and environmental indicators; thus, fewer studies have been conducted considering an economic perspective, particularly when trees are introduced. OBJECTIVE This study sought to compare the economic profitability of two integrated systems, crop-livestock only (CL) and crop-livestock-trees (CLT), crossed with two nitrogen fertilization levels (90 and 180 kg N ha−1, N90 and N180, respectively). METHODS Our analysis (gross revenue, costs and profit) relies on experimental data obtained over 10 years. In 2006, eucalyptus, pink pepper, and silver oak were planted in six of the 12 experimental units at 3 × 14 m spacing. RESULTS AND CONCLUSIONS In the first years (2007?2009), black oat was used as a cover crop during the winter, preceding summer cash crops (rice, soybean, and maize), to recover a degraded pasture and because most of the trees had not attained enough size to support animal impact. This period was marked by economic losses because only summer crops provided revenue. From 2010, when cattle grazing on cool-season pastures was integrated, preceding maize or soybean crops, the systems began to generate profit, and profit stability was observed in crop-livestock systems thereafter. Fertilizers accounted for the largest production cost (41% of total costs), and an increase in N level slightly increased the profit (+6%) in crop-livestock systems. The CLT N90 was as profitable as the crop-livestock treatments, despite high annual economic fluctuations with mature trees (i.e., + and - profit). However, the sale of wood from eucalyptus and silver oak contributed to cover these losses. Considering the complete production cycle of 10 years, the net accumulated profit was positive for all treatments, with values of US$ 1486, 2039, 2109 and 2238 ha−1 for CLT N180, CLT N90, CL N90, and CL N180, respectively. We conclude that crop-livestock performs better than crop-livestock-trees in terms of profit stability. An increase in the N level did not guarantee a significant increase in income revenue. SIGNIFICANCE Our findings indicate that CL provide profit stability, even in unfavored areas, thereby contributing to sustainable development goals globally. However, despite the importance of income from wood for farmers, mature trees impair the attainment of a stable profit over the years in CLT systems. Therefore, innovative agronomic practices combined with agricultural policies are needed to encourage the adoption of CLT systems and to adequately take advantage of their ecological benefits. MenosCONTEXT Integrated crop-livestock systems have been encouraged worldwide as they align with the principles of cleaner production. However, studies on these systems have mainly explored agronomic and environmental indicators; thus, fewer studies have been conducted considering an economic perspective, particularly when trees are introduced. OBJECTIVE This study sought to compare the economic profitability of two integrated systems, crop-livestock only (CL) and crop-livestock-trees (CLT), crossed with two nitrogen fertilization levels (90 and 180 kg N ha−1, N90 and N180, respectively). METHODS Our analysis (gross revenue, costs and profit) relies on experimental data obtained over 10 years. In 2006, eucalyptus, pink pepper, and silver oak were planted in six of the 12 experimental units at 3 × 14 m spacing. RESULTS AND CONCLUSIONS In the first years (2007?2009), black oat was used as a cover crop during the winter, preceding summer cash crops (rice, soybean, and maize), to recover a degraded pasture and because most of the trees had not attained enough size to support animal impact. This period was marked by economic losses because only summer crops provided revenue. From 2010, when cattle grazing on cool-season pastures was integrated, preceding maize or soybean crops, the systems began to generate profit, and profit stability was observed in crop-livestock systems thereafter. Fertilizers accounted for the largest production cost (41% of total costs), and an increase in... Mostrar Tudo |
Palavras-Chave: |
Recovery degraded pastures; Sistema agroflorestal. |
Thesagro: |
Agricultura Sustentável; Eucalipto. |
Thesaurus NAL: |
Agroforestry; Beef cattle; Eucalyptus; Sustainable agriculture. |
Categoria do assunto: |
A Sistemas de Cultivo |
Marc: |
LEADER 03545naa a2200265 a 4500 001 2132545 005 2021-06-24 008 2021 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1016/j.agsy.2021.103204$2DOI 100 1 $aPONTES, L. da S. 245 $aLong-term profitability of crop-livestock systems, with and without trees.$h[electronic resource] 260 $c2021 520 $aCONTEXT Integrated crop-livestock systems have been encouraged worldwide as they align with the principles of cleaner production. However, studies on these systems have mainly explored agronomic and environmental indicators; thus, fewer studies have been conducted considering an economic perspective, particularly when trees are introduced. OBJECTIVE This study sought to compare the economic profitability of two integrated systems, crop-livestock only (CL) and crop-livestock-trees (CLT), crossed with two nitrogen fertilization levels (90 and 180 kg N ha−1, N90 and N180, respectively). METHODS Our analysis (gross revenue, costs and profit) relies on experimental data obtained over 10 years. In 2006, eucalyptus, pink pepper, and silver oak were planted in six of the 12 experimental units at 3 × 14 m spacing. RESULTS AND CONCLUSIONS In the first years (2007?2009), black oat was used as a cover crop during the winter, preceding summer cash crops (rice, soybean, and maize), to recover a degraded pasture and because most of the trees had not attained enough size to support animal impact. This period was marked by economic losses because only summer crops provided revenue. From 2010, when cattle grazing on cool-season pastures was integrated, preceding maize or soybean crops, the systems began to generate profit, and profit stability was observed in crop-livestock systems thereafter. Fertilizers accounted for the largest production cost (41% of total costs), and an increase in N level slightly increased the profit (+6%) in crop-livestock systems. The CLT N90 was as profitable as the crop-livestock treatments, despite high annual economic fluctuations with mature trees (i.e., + and - profit). However, the sale of wood from eucalyptus and silver oak contributed to cover these losses. Considering the complete production cycle of 10 years, the net accumulated profit was positive for all treatments, with values of US$ 1486, 2039, 2109 and 2238 ha−1 for CLT N180, CLT N90, CL N90, and CL N180, respectively. We conclude that crop-livestock performs better than crop-livestock-trees in terms of profit stability. An increase in the N level did not guarantee a significant increase in income revenue. SIGNIFICANCE Our findings indicate that CL provide profit stability, even in unfavored areas, thereby contributing to sustainable development goals globally. However, despite the importance of income from wood for farmers, mature trees impair the attainment of a stable profit over the years in CLT systems. Therefore, innovative agronomic practices combined with agricultural policies are needed to encourage the adoption of CLT systems and to adequately take advantage of their ecological benefits. 650 $aAgroforestry 650 $aBeef cattle 650 $aEucalyptus 650 $aSustainable agriculture 650 $aAgricultura Sustentável 650 $aEucalipto 653 $aRecovery degraded pastures 653 $aSistema agroflorestal 700 1 $aPORFIRIO-DA-SILVA, V. 700 1 $aMOLETTA, J. L. 700 1 $aTELLES, T. S. 773 $tAgricultural Systems$gv. 192, 103204, Aug. 2021. 13 p.
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