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Estratégias de uso dos dejetos de suínos em plantio direto para mitigar as perdas de nitrogênio por volatilização de amônia
(Universidade Federal de Santa Maria, 2019-03-08)
Ammonia volatilization (NH3) is the main process of nitrogen loss (N) from liquid swine
manure (PS) after application to the soil. Its quantification and the development of management
alternatives to reduce losses are ...
Fluxo lateral na infiltração de água medida com duplo anel concêntrico
(Universidade Federal de Santa Maria, 2019-02-26)
The basic infiltration rate (TIB) is important in the definition of the irrigation rate and in the planning of soil conservation
systems. The TIB’s estimate has often been made with a double concentric ring, due to its ...
Decomposição de camadas do Mulch e contribuição para o carbono e nitrogênio do solo
(Universidade Federal de Santa Maria, 2019-03-08)
Recent studies have shown that mulches formed by different amounts of cultural residues have similar decomposition rates, evidencing the reduced effect of contact between soil and residue on decomposition. Recent studies ...
Isolamento e seleção de fungos para o controle do percevejo-marrom
(Universidade Federal de Santa Maria, 2019-07-15)
The stink bug species Euschistus heros can be controlled by entomopathogenic fungi. However, few researches have been done on the biological control of this species and there is only bio-insecticide available in the market. ...
Eficiência de absorção de nitrogênio e dinâmica do crescimento do sistema radicular de Vitis vinifera e Eucalyptus sp. submetidos à adubação nitrogenada
(Universidade Federal de Santa Maria, 2019-07-30)
Sandy soils and with low organic matter content do not provide provide enough nitrogen (N) to supply the demand of
Vitis vinifera and Eucalyptus sp. However, the applied N is not always used in large quantities by these ...
Reação de cultivares de soja e utilização de Trichoderma spp. para o manejo integrado de Meloidogyne javanica
(Universidade Federal de Santa Maria, 2019-12-20)
Soybean is considered the most economically important crop in Brazil, but its yield may be reduced due to pathogens and pests, if not controlled. Plant-parasitic nematodes are responsible for part of this decrease. Among ...
Compactação em argissolo submetido ao tráfego de veículo blindado de combate
(Universidade Federal de Santa Maria, 2019-08-16)
Heavy and continuous traffic from large vehicles causes soil compaction, which reduces their
physical quality and increases their susceptibility to water erosion. Military training exercises
with combat vehicles cause ...
Propriedades físicas do solo após tráfego da viatura blindada de transporte militar M113 BR no campo de instrução de Santa Maria, RS
(Universidade Federal de Santa Maria, 2019-08-01)
The physical properties of the soil can be changed after vehicle traffic, especially in high humidity conditions. The persistence and intensity of soil changes promoted by vehicle traffic are mainly dependent on factors ...
Microestrutura de um argissolo com aplicações de biochar de arroz e soja
(Universidade Federal de Santa Maria, 2019-02-25)
The addition of organic compounds to the soil causes different effects on its structure, either at the macro or microscale. But the extent of these effects is closely related to the molecular structure of the added organic ...
Formas de aplicação de fósforo sob calagem incorporada e superficial: efeito na acidez, disponibilidade de nutrientes e resposta de culturas
(Universidade Federal de Santa Maria, 2019-03-08)
Soybean (Glycine max) is grown in a large part of Brazil's arable land, predominantly under no-tillage system (SPD), where the application of fertilizers and limestone to the soil surface has increased. This management and ...