Mechanized Harvest
Mostrando 13-24 de 36 artigos, teses e dissertações.
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13. Pine Harvest Impact on Soil Structure of a Dystric Cambisol (Humic)
ABSTRACT Traffic of heavy machinery at harvest and log extraction causes structural degradation of the soil, but studies on the effects of forest harvesting on soils with high organic matter content and exchangeable Al are scarce. The objective of this study was to evaluate the effect of mechanized forest harvesting operations on a Dystric Cambisol (Humic) w
Rev. Bras. Ciênc. Solo. Publicado em: 23/06/2016
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14. Spatial and Temporal Variability of Soil CO2 Flux in Sugarcane Green Harvest Systems
ABSTRACT The sugarcane green harvest system, characterized by mechanized harvesting and the absence of crop burning, affects soil quality by increasing crop residue on the soil surface after harvest; thus, it contributes to improving the physical, chemical, and microbiological properties and influences the soil carbon content and CO2 flux (FCO2). This study
Rev. Bras. Ciênc. Solo. Publicado em: 23/06/2016
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15. Quality of cut and basecutter blade configuration for the mechanized harvest of green sugarcane
Quality control is used to evaluate processes and products, and is a powerful tool for reducing variability. The objective of this study was to evaluate the quality of green sugarcane (Saccharum spp.) cutting for mechanized harvest, using statistical quality control tools. Cutting height and damage to ratoon stalks caused by different blade and disc combinat
Sci. agric. (Piracicaba, Braz.). Publicado em: 2013-12
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16. Technical and economic assessment of trash recovery in the sugarcane bioenergy production system
Mechanized sugarcane (Saccharum spp.) harvest without burning has been increasingly adopted in Brazil, increasing trash availability on the field. This study aims at showing the importance of using an integrated framework tool to assess technical and economic impacts of integral harvesting and baling trash recovery strategies and different recovery rates as
Sci. agric. (Piracicaba, Braz.). Publicado em: 2013-10
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17. Residual biomass potential of commercial and pre-commercial sugarcane cultivars
Sugarcane (Saccharum spp.) is an efficient and sustainable alternative for energy generation compared to non-renewable sources. Currently, during the mechanized harvest process, the straw left in the field can be used in part for the second generation ethanol and increasing the electric energy production. Thus, this study aimed to provide information on the
Sci. agric. (Piracicaba, Braz.). Publicado em: 2013-10
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18. Yield and quality of sugar snap pea in the Ebro Valley: sowing date and seed density
Sugar snap pea (Pisum sativum L. var. macrocarpon Ser.) is an edible-podded sweet pea that is being considered as a new totally mechanized crop to supply raw material to the agri-food industry of the Ebro Valley (Northern Spain). It is of great interest from an agronomic and commercial standpoint but neither its agronomic behaviour nor its adaptation to the
Sci. agric. (Piracicaba, Braz.). Publicado em: 2012-10
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19. Mechanized methods for harvesting residual biomass from Mediterranean fruit tree cultivations
This study evaluates the technology and work systems used in order to harvest residual biomass from pruning in the specific conditions of Mediterranean fruit orchards (narrow distances between crop-rows). Harvesting has been divided into several types of operations - pruning, biomass alignment between crop tracks, biomass concentration in piles, chipping and
Scientia Agricola. Publicado em: 2012-06
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20. Transição da colheita da cana-de-açúcar manual para a mecanizada no Estado de São Paulo: cenários e perspectivas / Transition harvest sugar cane mechanized manual for the State of São Paulo: scenarios and perspectives
A presente dissertação analisa a evolução histórica do corte mecanizado no Estado de São Paulo e os ganhos de produtividade a ele associados, no período de 1950 a 2009. Foram estudadas as alterações no perfil da mão-de-obra, os métodos de colheita, a introdução dos maquinários e as colhedoras em operação no fim da década de 2000. A produtivi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/05/2011
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21. Algumas informações sobre a produção e o armazenamento de sementes de Cratylia argentea.
ABSTRACT: Cratylia argentea is a promising shrub forage legume native of Cerrado ecosystem. Information concerning the reproductive phenology, seed morphology, and seed production and storage are presented. Seed production varies with genotype, age, and spacing of the plants. Seeds of Cratylia argentea can be harvested manually, sun dried and hand cleaned. S
Planaltina. Publicado em: 2011
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22. Comportamento de três cultivares de café submetidos a diferentes espaçamentos entre linhas e regimes hídricos no Cerrado.
RESUMO: O objetivo deste trabalho foi definir os melhores espaçamentos entre linhas de plantas de três cultivares de café arábica, Iapar 59, Acaiá Cerrado MG 1474 e Topázio MG 1190, submetidas a cinco regimes hídricos, buscando tornar eficientes os sistemas, manual e mecanizado, de manejo da cafeicultura no Cerrado. A cultivar Iapar 59 foi plantada co
Planaltina. Publicado em: 2011
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23. Modelos de simulação para análise e apoio à decisão nos processos de corte mecanizado, carregamento e transporte no agronegócio da cana-de-açúcar / Simulation models for analysis and decision support in the processes of cutting, loading and transport in the agribusiness of cane sugar
In the current days sugarcane occupies an area of approximately 10,5 % of all the Brazilian agricultural land, with an estimated production for the 2008/2009 crop of 528 million t. In the sugarcane production process, the harvest highlights due its high costs, representing approximately 35% of the sugarcane production costs, besides the addition of operation
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/07/2009
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24. Phenological characteristics of physic nutaAiming the mechanized harvest / CaracterÃsticas fitotÃcnicas do pinhÃo-manso, visando à colheita mecanizada
The increasing demand through renewable sources made Brazil to stand out in this sector with the production of alcohol and also the biodiesel one. Biodiesel is a fuel made from vegetable oils, residual oils and fats of animal origin mixed with short chain alcohol, methanol or ethanol, in the presence of a catalyst. The physic nut is a culture that has become
Publicado em: 2009