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Biocarvão e cinzas de casca de arroz: amenizantes da toxidez de ferro em cultivos de arroz irrigado
(Universidade Federal de Santa Maria, 2019-07-19)
The state of Rio Grande do Sul is the largest rice producer in Brazil and the main cultivation system is irrigation by flooding. In this system, under anaerobic conditions, iron (Fe3+) present in the oxides is reduced to ...
Decomposição e emissão de N2O em função da qualidade e quantidade de resíduos culturais na superfície do solo
(Universidade Federal de Santa Maria, 2019-07-19)
The management of crop residues influence several processes in agriculture, such as soil
protection, water dynamics, decomposition, nutrient fluxes and the overall balance of
greenhouse gases, mainly N2O. These effects ...
Nitrogênio hidrolisável em meio alcalino no perfil de solos cultivados com arroz irrigado e sua contribuição para a nutrição da cultura
(Universidade Federal de Santa Maria, 2019-01-25)
Rice is an important food source for the world's population and is a substantial crop for Southern Brazil economic development. Nitrogen (N) is one of the most limiting nutrients for rice crop production, and the current ...
Fertilizantes orgânicos: Índice de eficiência e produção de alface, cenoura e mudas de eucalipto
(Universidade Federal de Santa Maria, 2015-08-28)
The process of transformation and stabilization of organic materials, like traditional compost and vermicompost, increase the efficiency of biofertilizers production. This work aimed to quantify the N mineralization and ...
Caracterização, ecotoxicologia e uso de substratos oriundos de resíduo de abatedouro de suínos para produção de mudas cítricas
(Universidade Federal de Santa Maria, 2019-02-28)
Pork has been the most consumed animal protein in the world and production levels are significantly higher in comparison to other livestock activities. However, this scenario of expansion in the sector also generates large ...
Biota do solo em pastagem sob aplicação sucessiva de dejetos de suínos
(Universidade Federal de Santa Maria, 2015-01-12)
The successive use of pig slurry as a soil fertilizer on pasture areas is a common practice in southern Brazil. While there are economic benefits of reuse of waste, this practice poses serious environmental risks and can ...
Diversidade de minhocas e sua relação com ecossistemas naturais e alterados no estado do Rio Grande do Sul
(Universidade Federal de Santa Maria, 2012-06-22)
Knowledge on earthworms diversity in Rio Grande do Sul (RS) State, as well as in Brazil,
is lower than the range estimated by taxonomists. The study aimed to: 1) evaluate the diversity
of earthworms present in ecosystems ...
Tolerância de espécies florestais arbóreas e fungos ectomicorrízicos ao cobre
(Universidade Federal de Santa Maria, 2007-12-13)
The contamination of soil for copper had refusal contribute to plants establishment in mining and vineyards areas of South Brazil. Mycorrhyzal forestry species could be one alternative to viable the development of plants ...
Impacto da adição de resíduos orgânicos na comunidade microbiana do solo e na emissão de N2O
(Universidade Federal de Santa Maria, 2016-08-22)
Agricultural lands receive crop and animal residues as option for additional nutrients to replace inorganic fertilizers. Although the idea of discard residues is sustainable, its implementation contributes to the production ...
Prospecção de fungos quitinolíticos e produção de quitinases por fermentação em estado sólido
(Universidade Federal de Santa Maria, 2016-07-22)
Fungi are organisms that have high importance as they are the primary decomposers of all terrestrial ecosystems and have critical ecological functions in nutrient cycling and associations with other organisms. Metabolic ...