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Águas acumuladas em açudes e barragens na região de Santa Maria e flutuações em seus atributos físico químicos
(Universidade Federal de Santa Maria, 2005-09-30)
The quality of superficial waters of reservoirs depends on the form of ground
use occupation on the catchments area. As the recharge is superficial emanation the
enrichment of the water with plants nutrients is consequence ...
Erosividade, coeficiente de chuva, padrões e período de retorno das chuvas de Quaraí e Rio Grande, RS
(Universidade Federal de Santa Maria, 2005-10-11)
The rainfall specifics characteristics vary from one region to another. The knowledge of the rainfall potential to cause erosion is necessary to plan agricultural and civil engineering
activities. For Quarai and Rio Grande ...
Avaliação da cor e comportamento espectral de algumas classes de solos do Rio Grande do Sul
(Universidade Federal de Santa Maria, 2005-02-23)
The soil color is a characteristic easily determined, through the visual comparison with the Munsell Charts and is related to the presence of iron oxide and organic matter in the soil. The obtention of the color trough ...
Fósforo na água e no sedimento na microbacia hidrográfica do Arroio Lino - Agudo - RS
(Universidade Federal de Santa Maria, 2005-02-19)
The natural ecosystems are modificated by human activities, charging the nutrients and sediments transference to aquatic environments. Our objective were to study the phosphorus (P) dynamic in little cracks after rainfall ...
Classificação do potencial de uso das terras no perímetro urbano de Santa Maria - RS
(Universidade Federal de Santa Maria, 2005-02-23)
In the last decades, the phenomenon of the urbanization has been transforming a large natural spaces into an extremely altered areas. The conversion of a rural society to an urban one has happened without caring with life ...
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 ...
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 ...
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 ...
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 ...