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Fertilização nitrogenada à dose variada na cultura do milho
(Universidade Federal de Santa Maria, 2014-02-25)
Maize is the main cereal produced in Brazil, being highly responsive to nitrogen fertilization, since the tropical and subtropical soils presents insufficient availability of nitrogen (N) to attend the culture demand in ...
Distribuição espacial de plantas na fileira e sua relação com a produtividade da cultura do milho
(Universidade Federal de Santa Maria, 2015-01-12)
Decreased variability in the distribution of plants on line and increased nitrogen fertilization efficiency are important order management for high yields in corn. The objective of this study was to evaluate the quality ...
Identificação de fontes de sedimento em bacias hidrográficas rurais do sul do Brasil
(Universidade Federal de Santa Maria, 2015-03-05)
Knowledge of the main diffuse sources of sediment can enhance efficiency in the use of public resources invested in soil conservation management strategies. Conventional fingerprinting methods based on geochemical composition ...
Emissões de dióxido de carbono durante a implantação de culturas em dois sistemas de preparo em latossolo vermelho do Rio Grande do Sul
(Universidade Federal de Santa Maria, 2011-12-19)
In farming systems with annual crops, the crop establishment period is characterized by intense soil disturbance in conventional tillage (CT) or disturbance only in the sowing line, in case of no-tillage (NT). The soil ...
Destino do carbono de raízes e parte aéreas de culturas de inverno enriquecidas com 13C em solo sob plantio direto
(Universidade Federal de Santa Maria, 2015-09-28)
Little is known about the decomposition and stabilization of shoots and intact roots derived carbon (C)
under no-tillage (no-till) field conditions. The present study was designed with following objectives:
1) evaluation ...
Produção de quitinases e biossurfactantes fúngicos por processos fermentativos
(Universidade Federal de Santa Maria, 2017-05-29)
Brazil's agricultural growth is based on the use of large quantities of synthetic agrochemicals, which result in high production costs and environmental degradation. On the other hand, Brazil harbors the greatest biodiversity ...
Cobre em solos arenosos sob vinhedos e resposta bioquímica-fisiológica de videiras em produção
(Universidade Federal de Santa Maria, 2012-12-20)
The use of Cu-based fungicides in the cultivation of grapevines for controlling fungal diseases
results in excessive accumulation of Cu in soils, which may cause nutritional problems to
plants. The present work aimed to ...
Estoque de carbono em áreas pioneiras de plantio direto no Rio Grande do Sul
(Universidade Federal de Santa Maria, 2014-02-26)
The change in land use is an important factor affecting soil C stocks and their distribution in the soil profile. The conversion of native vegetation (NV) for agricultural systems causes a sharp decline in carbon storage ...
Relações da matéria orgânica com a hidrofobicidade do solo
(Universidade Federal de Santa Maria, 2014-07-14)
Soil hydrophobicity can be conceptually defined as soil repellency to water and is associated with the covering of soil particles by hydrophobic organic substances which interact with mineral particles and pores in a complex ...
Study of the environmental contamination of human and veterinary medicines in the south Brazil
(Universidade Federal de Santa Maria, 2017-03-01)
Le sud du Brésil est une région agricole qui connait une forte croissance de sa production tant
au niveau céréalier qu'animal. L'intensification des pratiques agricoles ainsi que l’urbanisation
grandissante dans cette ...