Eficiência bioeconômica da adubação de pastagem natural no sul do Brasil

Santos, Davi Teixeira dos; Carvalho, Paulo César de Faccio; Nabinger, Carlos; Carassai, Igor Justin; Gomes, Luiz Hipólito

doi:10.1590/s0103-84782008000200023

Cited by 15 publications

(13 citation statements)

References 3 publications

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“…efficiency of feed use (Almeida, 2005), mostly correlating a production input, such as hectare or kg of feed consumption, with kg of live weight produced. In the study of Santos et al (2008), for instance, the expression. "bioeconomic efficiency" was used to evaluate different nitrogen doses and their effects on gross profit per hectare and on benefit to cost ratio.…”

Section: Resultsmentioning

confidence: 99%

Development and application of a bioeconomic efficiency index for beef cattle production in Rio Grande do Sul, Brazil

et al. 2012

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An index was developed to estimate the bioeconomic efficiency of production systems, identifying alternative scenarios that could improve their efficiency, and building isoefficiency relations in beef cattle production systems in Rio Grande do Sul. The concept of return on investment was used to develop the indicator. Scenarios regarded as efficient showed values higher than 3. The bioeconomic efficiency index for beef cattle production in the theoretical reference scenario was considered inefficient. At least four modifications in the variables method made it a bioeconomically efficient activity. These circumstances were studied using sensitivity analyses, with theoretical changes in the scenarios by changing variables two by two, while the others were kept constant. In Rio Grande do Sul, alternatives that make the activity efficient were identified by changing productivity, production cost, land price and product price. Isoefficiency relationships were identified in other scenarios. The application of this indicator in other agricultural activities, as well as the design of bioefficiency studies including both environmental and social welfare characteristics are recommended

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Section: Resultsmentioning

confidence: 99%

Development and application of a bioeconomic efficiency index for beef cattle production in Rio Grande do Sul, Brazil

et al. 2012

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“…Para maximizar o uso das pastagens é necessário utilizar piqueteamento, respeitar a altura de pastejo, a lotação animal e o tempo de repouso (CORDOVA et al, 2012). A adubação recomendada por um profissional habilitado através da análise de solo permite a manutenção das pastagens perenes por tempo indeterminado e aumento da lotação animal (kg/peso vivo/área), e aumentar a quantidade de nutrientes das pastagens, que favorece a nutrição (SANTOS et al, 2008). É necessário instalar um sistema hídrico nos piquetes para os animais beberem água.…”

Section: Resultsunclassified

Tipificação de propriedades leiteiras administradas por jovens agricultores na região do planalto norte catarinense

2019

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O desenvolvimento e a aplicação de indicadores de sustentabilidade que auxiliem na tomada de decisões na pecuária leiteira é uma importante demanda atual. No Planalto Norte Catarinense a pecuária leiteira tem crescido por meio do apoio de entidades públicas, privadas e organizações de agricultores. Esse crescimento tem suscitado discussões sobre modelos produtivos locais, especialmente no público jovem, que tem uma maior expectativa de vida produtiva. Esse trabalho tem como objetivo tipificar as unidades produtoras de leite no Planalto Norte Catarinense com base nas características produtivas como ferramenta para explicar a eficiência da atividade. Foram aplicados questionários em julho de 2018 em 26 propriedades rurais onde os jovens são protagonistas. A tipificação das propriedades rurais ocorreu em função de dez variáveis. Os resultados indicam maior influência da geração de renda por área na atividade leiteira em comparação aos custos operacionais. Nesses dois eixos, as propriedades foram divididas em cinco grupos: alta eficiência produtiva; alta produtividade animal; alto custo operacional; baixa eficiência produtiva; intermediário. Os indicadores utilizados se mostraram eficientes para retratar a realidade da atividade leiteira e os resultados sugerem que para maior lucratividade na atividade leiteira, é necessário gerir bem a lotação animal, a produtividade animal e os custos operacionais. Palavras-chave: Indicadores. Pecuária leiteira. Sustentabilidade. Sucessão rural. Tipificação.

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“…It should be noted that, to reach the profit an activity has generated, it first should return all the capital invested to its investors (farmer), that is, it shows the farmer how much worth or not worth investing and run business risks proposed (Antunes & Ries, 2001). Santos, Carvalho, Nabinger, Carassaii and Gomes (2008) evaluated the economic response of pasture fertilization consisting primarily of Paspalum notatum, with levels of 0, 100 and 200 kg N ha -1 , and found that the total cost was R$ 175.00, R$ 357.22 and R$ 539.44, the gross revenue was R$ 545.18, R$ 616.20 and R$ 1,045.20 and a gross margin of R$ 370.18, R$ 258.98 and R$ 505.76, respectively, and concluded that investment in pasture fertilization is economically feasible, regardless of the nitrogen level up to 200 kg ha -1 .…”

Section: Resultsmentioning

confidence: 99%

<b>Economic viability of production of Nellore heifers on <i>Urochloa brizantha</i> cv. Marandu pastures deferred and fertilized with nitrogen

Aguilar

Teixeira

Silva

et al. 2016

Acta Sci. Anim. Sci.

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The objective of this study was to evaluate the effect of different levels of nitrogen on deferred pastures of Urochloa brizantha cv. Marandu, and the implications on the economic viability of production of Nellore heifers. This was a completely randomized design with four treatments (T1 = deferred pasture without nitrogen fertilization; T2 = deferred pasture fertilized with 50 kg N ha-1 , T3 = deferred pasture with 100 kg N ha-1 , T4 = deferred pasture with 150 kg N ha-1) and four replications (16 fertilized paddocks). First, there were used 48 Nellore heifers, average eight months of age and initial body weight of 178.69 ± 26.67 kg, with three heifers in each paddock, in all treatments, in a continuous grazing system, with variable stocking rate. Only the treatment the without nitrogen fertilization showed negative

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Eficiência bioeconômica da adubação de pastagem natural no sul do Brasil

Abstract: ABSTRACT

Cited by 15 publications

References 3 publications

Development and application of a bioeconomic efficiency index for beef cattle production in Rio Grande do Sul, Brazil

Development and application of a bioeconomic efficiency index for beef cattle production in Rio Grande do Sul, Brazil

Tipificação de propriedades leiteiras administradas por jovens agricultores na região do planalto norte catarinense

<b>Economic viability of production of Nellore heifers on <i>Urochloa brizantha</i> cv. Marandu pastures deferred and fertilized with nitrogen

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