Field Mechanization
Mostrando 13-24 de 29 artigos, teses e dissertações.
-
13. Technical parameters for the white mold control using air- assisted hydraulic sprayer / Parâmetros técnicos para o controle do mofo-branco na cultura do feijão utilizando pulverizador hidráulico de barra com assistência de ar
The white mold, caused by the fungus Sclerotinia sclerotiorum, is one of the most destructive diseases of the bean plant in the world, especially in crops under conditions of mild temperatures and high soil and air humidity. In general, primary infections caused by this fungus start due to the presence of free water and an exogenous energy source, usually se
Publicado em: 2009
-
14. Avaliação de um sistema de plantio mecanizado de cana-de-açúcar / Evaluation of a mechanized plantation system of sugarcane
The mechanized plantation system has shown that it is more profitable and viable in an operational point of view than semi-mechanized plantation, that it banish lack of manual labor motivate principally for the mechanization of the harvest. The biometric parameters of the culture, the evaluation of the effective cost and the energy demand of the planters are
Publicado em: 2008
-
15. Metodologia de projeto de suspensão pantografica para corte de base de cana-de-açucar / Project methodology of pantographic suspension for sugar cane base cuter
In spite of been the world leader in sugar-cane production, Brazil have low indexes of harvester mechanization of sugar-cane. The sugar-cane harvesting involves five simple operations, that are the cut of the stems in the base and in the top, feeding of the stems for the interior of the harvester, remove the leaves and the cutting the stem in billets which i
Publicado em: 2008
-
16. Field performance of semi-mounted corn harvesters of one and two rows / Desempenho de colhedoras semi-montadas de uma e de duas fileiras, para colheita mecanizada direta de milho
O objetivo do trabalho foi adaptar procedimentos de ensaio existentes para colhedoras autopropelidas e avaliar o desempenho de colhedoras semi-montadas de uma fileira (C1) e de duas fileiras (C2), em que os tratamentos foram as velocidades de deslocamento de 0,53 m s-1, 0,77 m s-1e 1,42 m s-1 (C1) e 0,59 m s-1, 0,85 m s-1 e 1,52 m s-1 (C2), em dois graus ded
Publicado em: 2008
-
17. Avaliação agronômica da cana-de-açúcar submetida a métodos de colheita para produção animal / Agronomic traits of sugarcane (Saccharum spp.) under different harvesting methods for animal production
This research aimed to study harvesting losses, morphologic composition, dynamics of tillering and accumulation and, tiller density of sugarcane IAC86-2480 variety under three harvesting methods. In manual harvesting (MAN), plants were harvested to ground level, using a cutter. For mechanical harvesting (MEC), the harvester (adjusted for 20 cm from the groun
Publicado em: 2008
-
18. Software para estimativa do custo operacional da maquinaria agrÃcola â MAQCONTROL
This work describes the development of a software for farm machinery operation cost calculation, once the use of machines and agricultural implements are one of the factors that demand larger operational costs. Those costs are divided in fixed and variable costs. The objective of this work was to develop a software (MAQCONTROL) that contributed in the proces
Publicado em: 2007
-
19. Identificação e avaliação de variáveis críticas no processo de produção da cana-de-açúcar / Identification and evaluation of the critical variables in the sugar cane production process
Sugar cane is one of the cultures more important economically in Brazil, which is at the same time the leading producer and exporter in the word. The perspectives for the next few years are expansion of cultivated area in order to attend the demand, mainly the international market. Besides the increasing of production, giving the expansion of cultivated area
Publicado em: 2007
-
20. Biometria de mudas de cana-de-açúcar (Saccharum spp.) em dois sistemas de plantio / Biometry of sugar cane (Saccharum spp.) seedling in two systems of planting
With the purpose of determining the probable variation in the biometrical features of some variety of sugar cane in function of different systems of planting the follourng study was accompluhed at COSAN / Costa Pinto (Piracicaba SP) group area, from October 2005 to October 2006. For this, it was executed a standardized essay, where, under the same fie
Publicado em: 2007
-
21. Modelagem e quantificaÃÃo da compactaÃÃo de latossolos cultivados com eucalipto / Pattern and quantification from compactation in the Latosols cultivated with eucalypt.
The harvest operations and wood transport involves intensive traffic of machines on the soil, which may traffic in a same line several times, or randomly. Besides the passes number, the wood load transported also may affect the soil compaction, when the applied pressures for the machines exceed its bearing support capacity, altering the place where the root
Publicado em: 2006
-
22. PROPRIEDADES MECÂNICAS DE SOLO FRANCO ARENOSO SOB DISTINTOS SISTEMAS DE PREPARO, TRÁFEGO MECANIZADO E RESÍDUOS VEGETAIS / MECHANICAL PROPERTIES OF A SANDY LOAM SOIL AFFECTED BY TILLAGE STEMS MECHANICAL TRAFFIC AND SURFACE MULCH
The excessive mobilization of the soil causes losses to its structure. This is eliminated with the no tillage system, where mobilization only occurs in the planting line. However, considering that lately there was an increase in the use of the agricultural soils and of the mechanization, compaction problem in the surface soil layer in the system of no tillag
Publicado em: 2005
-
23. Inventions of politics / As invenções da política: sobre a existência da política e suas transformações
The present thesis studies the current transformations of the statute of politics that are underway. Therefore, it develops an interdisciplinary study, aiming at elucidating the conditions that enabled, in certain moments of the trajectory of human kind, the emergence, flourishing and suppression of relations that can be considered politic relations. Hence,
Publicado em: 2005
-
24. Assessment of sugarcane cultivation in agroforestry systems in Piracicaba, SP, Brazil. / Avaliação do cultivo de cana-de-açúcar em sistemas agroflorestais em Piracicaba, SP.
In Piracicaba, many smallholders grow sugarcane in areas of high solpe, but the mechanization of the harvest process has made inviable its cultivation under this situation. Agroforestry systems (AFs) are an alternative that may join the cultivation of the crop under this scenario with conservation of natural resources. However, there is lack of research of i
Publicado em: 2003