Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados CIGR Journal (2) Autor Banaeian, Narges (1) Castillo, Bernardo (1) Zangeneh, Morteza (1) Palavra-chave Mechanization. (2) Agricultural mechanization (1) Empirical models (1) Regression model (1) Soils (1) Traction. traction (1) Tractors (1) Yield (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2015 (1) 2014 (1) País China (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Investigation of agricultural mechanization status in corn production of Iran CIGR Journal Zangeneh, Morteza; Banaeian, Narges. For determination and assessing the effect of agricultural mechanization in irrigated corn of Iran, two indicators have been used: cultivated area (ha) and yield (kg/ha).  Several regression models have been built, using Mechanization Level (ML) and Mechanization Ownership (MO) of all agricultural operations, as input, and cultivated area and yield as output, separately.  The survey was carried out by means of data obtained from Agricultural Ministry of Iran in the period of 2001-2008.  The results revealed that mechanization ownership of planting and harvesting have a significant effect on cultivated area of corn in Iran with 95% and 99% confidence, respectively.  Based on obtained results, agricultural mechanization has an important role in improvement... Tipo: Info:eu-repo/semantics/article Palavras-chave: Yield; Regression model; Mechanization.. Ano: 2014 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2007 Evaluation of five traction models for agricultural tractors in Colombia CIGR Journal Castillo, Bernardo. The behavior of traction devices of agricultural tractors has been modeled by analytical techniques and through the use of empirical equations, the latter methodology has shown good results and numerous applications. This article presented the evaluation of four empirical traction models and one semi-empirical in order to establish the model that best fit to Colombian agricultural soil mechanization and to propose a tool that better assess the traction behavior of tractors in the field. Taking into account all terrains conditions evaluated, the model that best adjusted was the Gee-Clough and collaborators model and it was possible to explain the 90% of the draft forces measured. Also the model of Evans and others, using improved prediction coefficients of... Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural mechanization; Tractors; Traction. traction; Empirical models; Tractors; Soils; Mechanization.. Ano: 2015 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3369 Registros recuperados: 2 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco