Buscar
Itens para a visualização no momento 1-8 of 8
Qualidade física de solos irrigados do Rio Grande do Sul e do Brasil central
(Universidade Federal de Santa Maria, 2005-02-28)
The irrigated áreas are caracterized by an intensification of the land use, and as consequence, an intense use of the soil. This usually results in a higher pressure of the soil structure degradation, causing many times ...
Potencial de mineralização anaeróbica do nitrogênio em solos de várzea do Rio Grande do Sul
(Universidade Federal de Santa Maria, 2005-02-23)
The soil organic nitrogen is the main source of N to crops, which is released from soil organic matter (SOM) decomposition by microrganisms. The N fertilization is based
on SOM levels, however, the SOM decomposition and ...
Compactação em latossolos e argissolo e relação com parâmetros de solos e de plantas
(Universidade Federal de Santa Maria, 2005-02-28)
Soil compaction is closed related to agriculture as well as animal production management. Soil quality improvement has not been always achieved with use of soil conservation practice as no-tillage or use of animal production ...
Quantificação da biomassa e nutrientes em uma floresta estacional decidual em Itaara-RS, Brasil
(Universidade Federal de Santa Maria, 2005-09-23)
This study was conducted in a farm belonging to Military Brigade in the Itaara county, RS. The main objective was to quantify the nutrient stocks in the soil and the above ground biomass. The second aim was to evaluate the ...
Tecnologia mecanizada em preparo de área sem queima no Nordeste paraense
(Universidade Federal de Santa Maria, 2005-02-17)
The no tillage on fallow vegetation technology uses of the secondary vegetation that expontaneously grows from existing roots and stumps from the traditional process of slash and burn preparation of that vegetation in the ...
Mulching vertical e manejo da água em sistema plantio direto
(Universidade Federal de Santa Maria, 2005-02-28)
With the main objective to evaluate the hydrological behavior of the vertical mulching in no tillage system, this work have been realized in 2002/2003 and 2003/2004 agricultural years on Latossolo Vermelho Distrófico típico ...
Propriedades mecânicas de solo franco arenoso sob distintos sistemas de preparo, tráfego mecanizado e resíduos vegetais
(Universidade Federal de Santa Maria, 2005-02-18)
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 ...
Crescimento de plantas jovens de Euterpe edulis Martius em resposta a diferentes doses de fósforo
(Universidade Federal de Santa Maria, 2005-02-28)
The knowledge about palm (Euterpe edulis Mart.) mineral nutrition are important in the commercial scale of biomass of this specie, but there is a lack about nutritional necessities from the nursery to the production phase. ...