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Solos com diferentes sistemas de manejo e rotação de culturas em longo prazo: flutuações nas frações de fósforo
(Universidade Federal de Santa Maria, 2017-02-27)
An exploration for economical and sustainable alternatives, to maximize the use of phosphorus present in soil has emphasized against the decline in phosphate fertilizer production reserves. Different physical and chemical ...
Composto orgânico: composição, mineralização e produção de cultivar de porta-enxerto de nogueira-pecã (Carya illinoinensis (Wang) K.)
(Universidade Federal de Santa Maria, 2017-02-23)
Fruit and vegetable residue (FVR) can be used for the production of organic compost, which when mineralized may provide nutrients to fruit trees, such as the Pecan (Carya illinoinensis (Wang) K.). The objective of the study ...
Cobre e zinco no solo: crescimento e parâmetros fisiológicos em videiras jovens e aveia preta
(Universidade Federal de Santa Maria, 2017-11-10)
The Campanha Gaúcha is one of the main wine regions of Brazil that suffers from climatic factors favorable to the development of fungal diseases on the leafs of the grapevine (Vitis vinifera). Generally, the control of ...
Aplicação do modelo daycent na simulação dos fluxos de óxido nitroso e dos estoques de carbono no solo com o uso de adubação orgânica em plantio direto
(Universidade Federal de Santa Maria, 2017-07-31)
The application of organic residues from pig and poultry farming in no-till is a common practice in southern Brazil for nutrient cycling. Although this practice has a positive effect on crops productivity and soil C ...
Padrão de umedecimento e movimento da água no solo sob uma fonte pontual de irrigação no gotejamento subsuperficial
(Universidade Federal de Santa Maria, 2018-11-09)
The use of subsurface drip irrigation (SDI) has been increasing as a mean to deliver water,
fertilizers and pesticides to plants, being more effective. Increasing the water use efficiency is
one of the goals of irrigation ...
Estratégias de fornecimento de nitrogênio em videiras em produção
(Universidade Federal de Santa Maria, 2018-02-28)
Soils with sandy texture and low organic matter have low nitrogen (N) availability, it is
necessary supplemental applications to the vines. N is applied on the soil surface without
incorporation, which potentiates losses ...
Estratégias para aumentar a recuperação de nitrogênio em pessegueiro
(Universidade Federal de Santa Maria, 2019-02-27)
The peach is a fruit appreciated in the world because when consumed in natural it has a sweet and pleasant flavor and appearance of reddish yellow color. But also, it can be consumed in jams and candies. Therefore, the ...
Eficiência de absorção de nitrogênio e dinâmica do crescimento do sistema radicular de Vitis vinifera e Eucalyptus sp. submetidos à adubação nitrogenada
(Universidade Federal de Santa Maria, 2019-07-30)
Sandy soils and with low organic matter content do not provide provide enough nitrogen (N) to supply the demand of
Vitis vinifera and Eucalyptus sp. However, the applied N is not always used in large quantities by these ...
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 ...
Potencial fertilizante de adubos orgânicos à base de esterco bovino e sua utilização na produção de mudas de alface
(Universidade Federal de Santa Maria, 2011-07-28)
Agricultural production generates a diversity of organic waste, including manure, which is
often deposited on the soil without adequate treatment, that could damage the environment.
Treatment processes such as composting ...