Buscar
Itens para a visualização no momento 1-10 of 38
Propriedades microbiológicas e índice de qualidade de um argissolo subtropical submetido a sistemas de manejo
(Universidade Federal de Santa Maria, 2020-02-20)
Soil quality can be assessed through chemical, physical and biological index and properties. However, there is a knowledge gap on the reference values for interpretation of soil microbiological properties. In this study, ...
Fragilidade ambiental da Bacia do Arroio Guarda Mor
(Universidade Federal de Santa Maria, 2020-07-23)
Erosion hotspots act as sediment sources and are responsible for the transfer of sediments, nutrients and pollutants, leading to soil and water degradation. The erosive process occurs on variable and continuous range of ...
Proposição de doses e níveis críticos de nitrogênio e potássio em videiras
(Universidade Federal de Santa Maria, 2020-08-31)
When the soil does not have the capacity to supply enough nutrients to supplement the demand of the grapevines, it becomes necessary to carry out fertilization. However, it is not sufficiently known which the critical ...
Atributos químicos e matéria orgânica do solo sob diferentes manejos em Latossolo do Cerrado
(Universidade Federal de Santa Maria, 2020-09-25)
Cotton (Gossypium hirsutum L.) is an important agricultural crop in the Brazilian Cerrado
region and is frequently grown under conventional soil tillage (CT), monoculture and/or in
succession with grain crops, such as ...
Comunidade de formigas subterrâneas em área de pastagem nativa na região central do Rio Grande do Sul
(Universidade Federal de Santa Maria, 2020-09-29)
The Pampa biome is formed by an ecosystem with high biodiversity of both fauna and flora
represents more than 60% of the territory of Rio Grande do Sul state. As a rural environment
the main activity developed is agriculture ...
Interferência do intervalo de medição da precipitação na predição da infiltração de água no solo pelos modelos Hydrus- 1D e Green Ampt
(Universidade Federal de Santa Maria, 2020-02-19)
Mathematical modeling of water infiltration into the soil by means of physical-based models is
a valuable tool in forecasting scenarios that assist in solving environmental problems such as
floods, soil erosion, runoff ...
Desempenho de diferentes arranjos amostrais e modelos na espacialização de cátions trocáveis do solo
(Universidade Federal de Santa Maria, 2021-04-16)
Soil sampling for the mapping of its properties can be performed by a variety of arrangements with different levels of complexity. Considering the importance of exchangeable soil cations for crops, it is necessary to ...
Residualidade e reaplicação de corretivo da acidez, associada ou não ao gesso, em Latossolo no Cerrado: alterações nos atributos químicos do solo no perfil e baixo impacto na produtividade da soja e do milho
(Universidade Federal de Santa Maria, 2021-01-29)
Soil reacidification is a slow process and starts from the surface. In soils under a no-tillage (NT) system the reacidification can be controlled by reapplying lime on the surface provided that the soil native potential ...
Estabilização do carbono- 13C de resíduos culturais no solo afetada pela qualidade, manejo dos resíduos e teor de carbono do solo
(Universidade Federal de Santa Maria, 2020-08-28)
Crop residue quality and soil carbon (C) content influence the stabilization of C in the granulometric fractions of soil organic matter (SOM). However, little is known about the interactions between these factors and under ...
Dinâmica da água no solo em plantio direto com e sem terraço
(Universidade Federal de Santa Maria, 2020-02-21)
The decrease in runoff and the increase in infiltration are benefits of agricultural terraces. However, the contribution of terracing to the water storage in the soil and to the available water storage to plants is still ...