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Itens para a visualização no momento 11-20 of 38
Métodos de amostragem para a modelagem espacial de fósforo disponível no solo
(Universidade Federal de Santa Maria, 2021-03-30)
Sampling represents a crucial step for digital soil mapping because it directly
interferes with the operational costs of the project and in the following steps of
data processing, up to the quality of the generated map. ...
Decomposição de resíduos culturais de plantas de cobertura, emissão de gases do efeito estufa e produtividade do arroz e soja em terras baixas
(Universidade Federal de Santa Maria, 2021-02-26)
Growing grasses and legumes as cover crops in autumn / winter is an uncommon practice in lowlands, especially regarding the use mixture between this species. The objective of this study was to evaluate whether the mixture ...
Estratificação dos teores de potássio no solo de lavouras sob sistema plantio direto
(Universidade Federal de Santa Maria, 2021-08-24)
Potassium (K) is an essential macronutrient and its application in agricultural soils is required
due to the high export rate by crops. Within this context, agricultural systems seek greater
operational yield from ...
Estratégias de manejo de solo para transição agroecológica em horticultura
(Universidade Federal de Santa Maria, 2021-10-13)
Agroecology is a scientific field that guides sustainable practice of agriculture, which is a process of conversion from traditional to more sustainable practices based on adoption of conservation management techniques and ...
Propriedades reológicas na detecção do caráter coeso em solos
(Universidade Federal de Santa Maria, 2021-03-05)
The cohesive character has been evaluated primarily in the field, where a pedologist is capable
to recognize it rather easily. However, there is a problem of subjectivity and lack of metrics for
characterization, so ...
Liberação de fósforo e potássio durante a decomposição de palha de cana-de-açúcar sob diferentes taxas de remoção da palha
(Universidade Federal de Santa Maria, 2022-02-24)
The mechanized harvesting of sugarcane (Saccharum officinarum L.) results in large amounts
of straw deposited on the soil surface, arousing the interest of industries in its use for the
production of bioethanol and ...
Residualidade da forma e do modo de aplicação de calcário sobre atributos químicos do solo e de culturas
(Universidade Federal de Santa Maria, 2021-06-18)
A soil considered to be of good quality should allow for root growth without restrictions regarding chemical, physical and biological attributes and provide a greater volume of explored soil. The no-tillage system must ...
Identificação de plintita e/ou resíduo de saprolito em solos com elevado gradiente textural
(Universidade Federal de Santa Maria, 2022-03-22)
The identification of mottles such as plinthite and saprolite residue in the soil can be considered a difficult task, both in the field and in the laboratory. The incorrect identification of these redoximorphic features ...
Fitonematoides associados a nogueira-pecã no Rio Grande do Sul e correlação com os atributos do solo
(Universidade Federal de Santa Maria, 2022-06-24)
Rio Grande do Sul is the largest pecan producer in the country. This crop is gaining space on
small and medium farms because of its profitability, longevity, and possibility of income
diversification. Because it is a ...
Escoamento superficial de água em um argissolo com plantas de cobertura sob chuva natural
(Universidade Federal de Santa Maria, 2021-10-27)
The human activities have caused a great negative impact on the surface runoff of water in the soil. Aiming to minimize these effects, the cover crops started to exercise an important position on soil management. However, ...