Buscar
Itens para a visualização no momento 11-14 of 14
Influência da altura da lâmina de água sob o desempenho da produção na cultura do arroz irrigado
(Universidade Federal de Santa Maria, 2014-01-24)
Rice (Oryza sativa L.) is considered the staple food for about 2.4 billion people, is the product of greater economic importance in many developing countries. Water management is one of the most important in Rice yield ...
Resposta à irrigação e à adubação nitrogenada em cobertura da cultura do girassol
(Universidade Federal de Santa Maria, 2014-01-31)
The production of sunflower has as main factor limiting the water deficit is caused by scarcity or by poor rainfall distribution. In scenarios where there is enough water supply, soil fertility becomes limiting, where ...
Avaliação de motores de tratores agrícolas utilizando dinamômetro móvel
(Universidade Federal de Santa Maria, 2014-02-25)
Tractors are the most used agricultural machines in most mechanized operations in a rural property. This has raised agricultural tractors production and trading. Together with such production raise, questions have also ...
Desempenho de mecanismos de corte dos resíduos culturais e abertura de sulco para a semeadura direta
(Universidade Federal de Santa Maria, 2014-01-31)
The objective of this work was to evaluate the tractor/toolholder operating performance equipped with different configurations of the cutting elements of crop residues and soil breakers, depending on the speed. This was ...