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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 ...
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. ...