Mechanization
Mostrando 13-24 de 186 artigos, teses e dissertações.
-
13. Yield and water use efficiency of cactus pear under arrangements, spacings and fertilizations
RESUMO A palma forrageira é adaptada às condições semiáridas. Neste trabalho, objetivou-se avaliar em três ciclos de produção, a eficiência do uso da água e as produtividades de massa verde e matéria seca, da cultivar Gigante sob diferentes doses e fontes de adubação, espaçamento e arranjos de plantas. Setenta e dois tratamentos, envolvendo doi
Rev. bras. eng. agríc. ambient.. Publicado em: 01/07/2019
-
14. Representatividade da amostragem com emprego do trier na caracterização de leiras de compostagem de resíduos sólidos urbanos com base na Teoria da Amostragem de Pierre Gy
RESUMO O objetivo deste trabalho foi avaliar o desempenho do amostrador trier (NBR 10007/2004) na representatividade das propriedades de leiras de compostagem confeccionadas com resíduos sólidos urbanos, no início da degradação dos resíduos (8 dias) e no composto orgânico pronto (120 dias), utilizando como referência um método adaptado à compostage
Eng. Sanit. Ambient.. Publicado em: 30/05/2019
-
15. Impact of local conditions and machine management on grape harvest quality
ABSTRACT: Since its inception approximately 50 years ago, the grape harvester has been one of the machines responsible for the expansion of viticulture in the world. In Spain, harvesters were introduced in the 1990s (there are now approximately 3,000 machines there as of 2017), while they were introduced in Brazil in 2010. Harvest mechanization requires spec
Sci. agric. (Piracicaba, Braz.). Publicado em: 20/05/2019
-
16. THE TECHNOLOGICAL LEVEL OF AGRICULTURAL MECHANIZATION IN THE STATE OF CEARÁ, BRAZIL
ABSTRACT Agricultural mechanization is a significant factor of agricultural modernization, but there are few data on the technological levels of this mechanization in the State of Ceará, Brazil. To study this topic, we designed a structured questionnaire, and interviews were conducted across the state. The survey data made it possible to calculate an index
Eng. Agríc.. Publicado em: 2019-02
-
17. Urinary cotinine in tobacco farmers in Southern Brazil
ABSTRACT OBJECTIVE To describe urinary cotinine levels in tobacco farmers. METHODS A cross-sectional study was conducted in 2,570 tobacco farmers. All participants that reported green tobacco sickness in the week prior to the interview plus a subsample of 492 pesticide applicators were included. We collected urinary samples and information about sociodem
Rev. Saúde Pública. Publicado em: 26/07/2018
-
18. Flow Analysis: Looking Back and Forward
Flow analysis changed significantly the way of performing chemical analysis by (i) mechanization of analytical procedures in a continuous flowing stream with minimal sample intercontamination; (ii) analytical measurements without attaining chemical equilibria, thus increasing the applicability of kinetic methods and allowing the exploitation of non-quantitat
J. Braz. Chem. Soc.. Publicado em: 2018-05
-
19. Determining the Contribution of Ventilation and Insulation of Broiler Breeding Houses in Production Performance Using Analytic Hierarchy Process (AHP)
ABSTRACT This study was conducted using Analytic Hierarchy Process (AHP) in order to rank broiler breeding farms in Zanjan province, Iran, regarding buildings, installations, and equipment to determine their effects on production factors. Data on 108 farms were collected using designed forms. This data was analyzed based on the effectiveness of each paramete
Braz. J. Poult. Sci.. Publicado em: 2018-04
-
20. MULTIVARIATE ANALYSIS OF PEANUT MECHANIZED HARVESTING
ABSTRACT The peanuts harvesting mechanization is affected by the soil physical characteristics and it may increase the losses due to the production of pods in subsurface. The objective of the experiment was to identify the clusters through multivariate exploratory approaches from similarity in six soil textures (very clayey, clayey, silty clayey loam, clayey
Eng. Agríc.. Publicado em: 2018-04
-
21. Solid-phase extractions in flow analysis
ABSTRACT Coupling solid-phase extraction (SPE) to flow systems has promoted a synergistic development. Whereas SPE mechanization leads to improved precision and higher sample throughput, as well as diminishes systematic errors and contamination risks, analyte concentration and separation from the sample matrix provides a remarkable impact on detectability an
An. Acad. Bras. Ciênc.. Publicado em: 2018
-
22. INFLUENCE OF THE PLOTS FORMAT ON THE PERFORMANCE INDEX OF THE SOYBEAN COMBINE HARVESTER
ABSTRACT: The intensive mechanization during the harvest operation and success of this operation depends on several factors, one of which is the length and format of the plots. The aim of this study was to evaluate the operating performance of a soybean harvester in different geometric plots shape, using as quality indicators performance parameters by means
Eng. Agríc.. Publicado em: 2017-09
-
23. Tree legumes: an underexploited resource in warm-climate silvopastures
ABSTRACT Tree legumes are an underexploited resource in warm-climate silvopastures. Perceived benefits of tree legumes include provisioning (browse/mast, timber, fuel, human food, natural medicines, and ornamentals), regulating (C sequestration, greenhouse gas mitigation, soil erosion control and riparian buffers, shade, windbreaks, and habitat for pollinato
R. Bras. Zootec.. Publicado em: 2017-08
-
24. Access and Intensity of Mechanization: Empirical Evidence of Rice Farmers in Southern Ghana
ABSTRACT The medium term development plan of Ghana proposed modernization of agriculture to lead the way in transforming the economy. Providing irrigation infrastructure and enhancing farmer access to farm machinery were major interventions proposed. In line with this, the government has been investing in irrigation infrastructure as well as importing farm m
Braz. arch. biol. technol.. Publicado em: 22/06/2017