Análise econômica de consórcios de Brachiaria brizantha com culturas graníferas anuais voltados para a recuperação de pastagens na Amazônia

Rodrigues, Marcos; Rabêlo, Flávio Henrique Silveira; Bernardi, Douglas Bispo; Lange, Anderson

doi:10.5039/agraria.v10i1a5084

Cited by 4 publications

(3 citation statements)

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“…Costs of pasture intervention per year in pilot properties were similar to the ones observed in other regions of Pará state [32,33] and the Amazon [34,35]. A three-fold variation in costs observed among pilot properties stemmed from differences in the level and extent of pasture degradation, which leads to decreased productivity of fodder plants, jeopardizing the sustainability of cattle production [36].…”

Section: Discussionsupporting

confidence: 57%

Costs, Benefits and Challenges of Sustainable Livestock Intensification in a Major Deforestation Frontier in the Brazilian Amazon

et al. 2017

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Abstract:Extensive livestock production is a major deforestation driver in the Brazilian Amazon. This study presents an assessment of the economic and environmental feasibility of sustainable livestock intensification in São Félix do Xingu municipality, a deforestation frontier with an area of more than 8.5 million hectares, and home to the largest cattle herd in Brazil. Proposed intensification was limited to approximately three animal units per hectare to avoid negative environmental impacts. Transition costs to sustainable cattle intensification were estimated for thirteen pilot farms taking into account adoption of good agriculture practices, pasture maintenance/restoration, and restoration of environmental liabilities. To move to sustainable intensification practices, a mean total annual investment of US$1335/ha ± US$619/ha would be necessary, varying from US$750 to US$2595/ha. Internal rate of return and net present value estimates indicated that the sustainable livestock intensification approach proposed was profitable in farms with more than 400 hectares of pastureland, but not in those where the pasture areas were smaller than 150 hectares. Livestock sustainable intensification also had the potential to promote social and environmental benefits, including a 54% increase in the number of contract workers, improvement of landowners' managerial skills, and workers' training, in addition to avoiding emission of 1.9 Mt CO 2 eq and sequestration of 0.36 Mt CO 2 eq. We conclude that the sustainable intensification of pasture areas has the potential to prevent further deforestation in the Amazon while generating social and other environmental benefits.

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Section: Discussionsupporting

confidence: 57%

Costs, Benefits and Challenges of Sustainable Livestock Intensification in a Major Deforestation Frontier in the Brazilian Amazon

et al. 2017

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“…Fertilizers constituted 66% of all inputs. Rodrigues et al (2015) also found higher inputs accounting for 85% of all expenses associated with the sorghum-'Marandu' grass consortium. Operations accounted for only 33.6% of the total operational cost.…”

Section: Resultsmentioning

confidence: 87%

Economic analysis of sorghum consortia with forages or with dwarf pigeon pea succeeded by soybean or corn

Pascoaloto

Andreotti

Cruz

et al. 2017

Pesq. agropec. bras.

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The objective of this work was to determine the most economically viable integrated no-tillage crop-livestock system by intercropping sorghum with tropical forages or dwarf pigeon pea, succeeded by soybean or corn, over a two-year period. The experiment was carried out in a randomized complete block design with four replicates. The treatments consisted of forage sorghum intercropped with: 'Marandu' grass; 'Marandu' grass and dwarf pigeon pea; 'Mombaça' grass; 'Mombaça' grass and dwarf pigeon pea; and dwarf pigeon pea and single sorghum, harvested for silage in the first cut and regrowth, succeeded by soybean or corn. The following calculations were made: effective operational cost, total operational costs, gross revenues, operational income, profitability index, equilibrium price, and equilibrium productivity. These variables were determined for individual crops, as well as for the sum of the crops occupying the same area over time. The sorghum consortia with 'Mombaça' grass, with or without dwarf pigeon pea, had 18 and 14% lower productivity and profitability, respectively, than the sorghum consortia with 'Marandu' grass, with or without dwarf pigeon pea. Soybean in succession requires less chemical control of the 'Mombaça' grass than corn in succession.

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“…Furthermore, the DMP and chemical composition of forages varies with soil type, amount and type of fertilizer, genetic differences between cultivars and interval between cuts (Dupas et al, 2016a;Rezende et al, 2015). Therefore, the knowledge generated through research, especially that resulting in new technology, can be adopted when the competitive edge is greater in comparison to already existing alternatives and when prices are beneficial, implying higher production of forage in an efficient way (Rodrigues et al, 2015). Thus our objective was to investigate the influence of fertilizers on the production, chemical composition and economic parameters of Brachiaria brizantha cv.…”

Section: Introductionmentioning

confidence: 99%

What is the best fertilizer for Marandu and Xaraes palisadegrass production in the short term?

Rezende

Rabêlo

Santos

et al. 2017

Idesia

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Several fertilizers with different efficiency and price are commercially available to increase the yield of pastures, generating doubts about which should be chosen for fertilization, especially regarding short term operation returns. Our objective was to investigate the effect of simple and compound fertilizers on the production, chemical composition and economic parameters of Marandu and Xaraes palisade grass in the short term. The fertilizers Urea, Super N, were evaluated in three cuts of the pasture. The overall rate of tiller occurrence, dry matter production, crude protein content, total digestible nutrients and digestible energy of Marandu palisade grass increased with the supply of nitrogenous fertilizers, while neutral detergent fiber (NDF), acid detergent fiber and hemicellulose content decreased. Fertilization using Super N resulted in higher production of mass per kilogram of fertilizer applied and per unit of real (R$) invested per hectare. The number of tillers of Xaraes palisade grass increased and NDF content decreased with the application of 20-10-10. Fertilization of Marandu palisade grass with Super N is more efficient from the economic and productive point of view than fertilization with urea. Comparing the grasses, Xaraes is more demanding in phosphorus and potassium than Marandu.Key words: chemical composition; morphological characteristics; production cost. Súper N, RESUMEN Existen varios fertilizantes disponibles comercialmente para aumentar el rendimiento de los pastos, generando dudas sobre cuál debe ser escogido para la fertilización, especialmente con respecto a la eficiencia y los costos de operación a corto plazo. El objetivo de este trabajo fue investigar el efecto de los fertilizantes simples y compuestos sobre la producción, la composición química y los parámetros económicos en una empalizada de Marandu y Xaraes a corto plazo. Se evaluaron los fertilizantes úrea,

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Análise econômica de consórcios de Brachiaria brizantha com culturas graníferas anuais voltados para a recuperação de pastagens na Amazônia

Cited by 4 publications

References 13 publications

Costs, Benefits and Challenges of Sustainable Livestock Intensification in a Major Deforestation Frontier in the Brazilian Amazon

Costs, Benefits and Challenges of Sustainable Livestock Intensification in a Major Deforestation Frontier in the Brazilian Amazon

Economic analysis of sorghum consortia with forages or with dwarf pigeon pea succeeded by soybean or corn

What is the best fertilizer for Marandu and Xaraes palisadegrass production in the short term?

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