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Suscetibilidade magnética na estimativa de atributos do solo e identificação de compartimentos da paisagem em latossolos de basalto no planalto do RS
(Universidade Federal de Santa Maria, 2015-02-25)
The variability of soil attributes is related to environmental factors affecting soil formation processes. Different techniques have been employed to map this variability, among these techniques, the reading of the magnetic ...
Predição da mineralização de nitrogênio pelo método Direct Steam Distillation (DSD) em solos aptos ao cultivo de arroz irrigado
(Universidade Federal de Santa Maria, 2015-02-25)
Nitrogen (N) fertilization management in the states of Rio Grande do Sul (RS) and Santa Catarina (SC), Brazil, is performed using interpretation tables of soil organic matter (SOM) in which we obtain the interpretation ...
Determinação da acidez potencial de solos pela titulação direta
(Universidade Federal de Santa Maria, 2015-04-23)
The calibration of the solution SMP or the solution TSM for their use to estimate the soil potential acidity (H+Al) uses the direct soil titration by incubation with calcium carbonate for a period of 180 days, which makes ...
Capacidade de preparos de solo reduzirem limitações físicas naturais de áreas de várzea para o cultivo de soja
(Universidade Federal de Santa Maria, 2015-08-14)
The soybean crop development in lowland soils in recent years has increased. The aim of this study was to investigate the capacity of the soil management to modify the physical environment of the soil, and analyze the role ...
Biomarcadores enzimáticos e ecotoxicidade por cobre em Eisenia andrei (Bouché 1972)
(Universidade Federal de Santa Maria, 2015-10-16)
The indiscriminate use of agricultural supplies can cause soil pollution, affecting the flora, fauna and ecological relationships. Among these chemical compounds used in agriculture, there is the Bordeaux mixture. The ...
Fertilizantes orgânicos na ação de Pratylenchus brachyurus em soja
(Universidade Federal de Santa Maria, 2015-03-20)
Phytonematodes can significantly limite the soybean yield. Due to inadequate soil management and the fact that there is not efficient nematicide in the market. The, P. brachyurus known as the nematode root lesions, has ...
Dinâmica do efluxo de CO2 e da decomposição de resíduos afetada pelo tipo de cultura de cobertura e sistema de preparo
(Universidade Federal de Santa Maria, 2015-02-24)
The liquid carbon accounting balance in the soil is important to identify agricultural practices that contribute to mitigation of global climate change. In this sense, research must be conducted to improve the accuracy of ...
Carbono total e abundância natural de 13C em perfis de solo sob plantio de eucalipto
(Universidade Federal de Santa Maria, 2015-07-17)
The planting of eucalyptus is a common practice in areas previously used for extensive livestock farming in the southern half of Rio Grande do Sul (RS), but such cultivation raises many questions about its influence on the ...
Modelagem da infiltração de água no solo com modelo Green-Ampt
(Universidade Federal de Santa Maria, 2015-07-28)
Modeling water infiltration using physical based models, including the vertical variability of soil and rainfall intensity throughout a precipitation event, allows to estimate the runoff and infiltration measured in ...
Estoque de carbono e nitrogênio em solo sob sistemas de manejo e culturas de inverno
(Universidade Federal de Santa Maria, 2015-03-11)
Soil organic matter (SOM) constitutes the largest reservoir of carbon (C) and nitrogen (N) of the earth's surface. In agricultural soils, the organic fraction is of great importance in maintaining soil quality, while ...