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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 ...
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 ...
Avaliação da saúde do solo em sistemas agrícolas sob agricultura conservacionista no Brasil
(Universidade Federal de Santa Maria, 2022-03-12)
Conservation agriculture (CA) has been promoted as the main strategy to regenerate soil life but its effect on soil enzyme activity and on soil microbiota remains little documented. This study investigated the β-glucosidase ...
Relação entre as emissões de N2O e a expressão dos genes do ciclo do nitrogênio em um solo cultivado com milho sobre resíduo de ervilhaca
(Universidade Federal de Santa Maria, 2022-02-04)
Addition legume residues as cover crops may increase soil N2O emissions under no-tillage system. However, when there is water deficit and grass cultivation in succession, the activity of denitrifying microorganisms and ...
Estimativa da acidez potencial em solos utilizando a espectroscopia Vis-NIR
(Universidade Federal de Santa Maria, 2022-09-30)
The chemical analysis of soil components is a tool that allows good practices for correctives
and fertilizers recommendation and managing soil fertility. Traditional methods of analysis
usually consume a high number of ...
Perdas de nutrientes associadas ao escoamento e aos sedimentos erodidos em encostas sob plantio direto
(Universidade Federal de Santa Maria, 2022-01-31)
No-tillage (NT) is widely used in areas of grain crops in tropical and subtropical regions.
However, crops fields under NT with low phytomass addition and without runoff control
practices are highly susceptible to ...
Eficiência na absorção e proposição de níveis críticos de nutrientes em citros
(Universidade Federal de Santa Maria, 2022-08-31)
Citrus plants adapt well in tropical, temperate, and subtropical countries, which turns them of
great importance to the agriculture sector. Usually, kinetics parameters related to nutrient
uptake are not evaluated, that ...
Utilização da casca de arroz in natura e carbonizada na composição de substratos para o cultivo de Pleurotus ostreatus
(Universidade Federal de Santa Maria, 2022-02-25)
Rice husk is a waste generated in large quantities in various countries, although its
reuse is limited due to low nutritional quality and high silica content. Therefore, this
study sought to evaluate using raw or carbonized ...