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Emissão de óxido nitroso e mineralização do carbono de plantas de cobertura e de dejetos suínos e bovínos em plantio direto de mamona
(Universidade Federal de Santa Maria, 2009-02-27)
The increase in the availability of nutrients to soil microorganisms, especially carbon (C) and nitrogen (N), through crop residues and animal slurries can increase
dioxide carbon (CO2) and nitrous oxide (N2O) emissions ...
Superfosfato simples contendo fosfato de ferro de baixa solubilidade aplicado em solos de várzea do Rio Grande do Sul
(Universidade Federal de Santa Maria, 2009-05-21)
Some rocks used in fertilizer production contain impurities of low solubility in water such as iron aluminum phosphate (Fe- Al- P). The use of these rocks
generates simple superphosphate which may contain impurity levels ...
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 ...
Efeito do calcário em atributos biológicos do solo
(Universidade Federal de Santa Maria, 2005-02-28)
The soil is a complex system composed by live organisms, organic matter, gases, water and minerals parts that interact. In this sense, the soil organisms, besides inhabitants, are part of its composition. In the soil, the ...
Características físicas e químicas de sedimentos em suspensão durante eventos fluviométricos em bacias hidrográficas do sul do Brasil
(Universidade Federal de Santa Maria, 2014-08-11)
The observed high sediment load in the rivers of southern Brazil is strongly related to the degradation of agricultural soils due to water erosion. Currently there is great interest in describing the erosive processes and ...
Recomendação de nitrogênio e potássio para trigo, milho e soja sob sistema plantio direto no Paraguai
(Universidade Federal de Santa Maria, 2005-08-08)
More than 50% of the cultivated areas in the Southern Brazil and more than 60% of the cultivable area in Paraguay adopted the no-tillage system. This system went through several improvements, but there are still doubts ...
Fluxos de fósforo em uma bacia hidrográfica sob cultivo intensivo no sul do Brasil
(Universidade Federal de Santa Maria, 2014-09-08)
Eco-environments from sweet water are crucially important, as they provide water for multiple purposes, including human and animal consumption, irrigation and entertainment. However, its quality can suffer significant ...
Decomposição e liberação de nitrogênio da palha cana-de-açucar em função do ambiente e quantidade de palha
(Universidade Federal de Santa Maria, 2014-07-28)
The sugarcane residues came out as an important source of biomass for the production of
cellulosic ethanol in Brazil. However, there is a lack of studies on the impact that how partial
removal of these residues affect the ...
Efeito do fungo micorrízico arbuscular e do vermicomposto na fitorremediação do cobre em solo arenoso
(Universidade Federal de Santa Maria, 2014-09-12)
Introduction and objectives: Arbuscular mycorrhizal fungi and vermicompost may decrease the deleterious effects of copper on plants. The goal of the present study was to evaluate the effect of inoculation with the fungus ...
Transição agroecológica em sistemas de produção de batata
(Universidade Federal de Santa Maria, 2005-08-29)
This work was done as an articulation program between technicians of EMATER-RS, UFSM and FEPAGRO-RS and small farmers of ASBAT. The research aimed to evaluate
management practices of the potato production in a systemic ...