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Itens para a visualização no momento 11-20 of 85
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 ...
Adubação nitrogenada à taxa variada com o N-Sensor nas culturas do milho e trigo
(Universidade Federal de Santa Maria, 2010-03-03)
Most tropical and subtropical soils present insufficient availability of nitrogen (N) to meet the demand of maize and wheat in order to obtain high yields. The N in plants can be evaluated through the use of sensors of ...
Fertilização nitrogenada à dose variada na cultura do milho
(Universidade Federal de Santa Maria, 2014-02-25)
Maize is the main cereal produced in Brazil, being highly responsive to nitrogen fertilization, since the tropical and subtropical soils presents insufficient availability of nitrogen (N) to attend the culture demand in ...
Relações entre indicadores de qualidade do solo e a produtividade das culturas em áreas com agricultura de precisão
(Universidade Federal de Santa Maria, 2007-02-16)
The estimative of yield variability is an important tool to soil management decisions and to investigate yield limiting factors. Tools of precision farming as yield mapping and soil sampling using GPS makes possible identify ...
Balanço e evolução temporal de teores de fósforo e potássio no solo em áreas manejadas com agricultura de precisão
(Universidade Federal de Santa Maria, 2011-08-31)
The need for improving nutrient use efficiency and increase savings demand a better
knowledge of soils and production systems. The objective of this study was to
evaluate the soil P and K budget and its relationships ...
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. ...
Adoção da agricultura de precisão na Amazônia: estudo de caso na região cone sul do estado de Rondônia
(Universidade Federal de Santa Maria, 2016-08-09)
During the last years, the application of Precision Agriculture (PA) has been a research object worldwide, and the understanding of the factors related to it becomes crucial for the development of strategies that can meet ...
Estimativa da produtividade de milho (Zea Mays L.) através de imagens obtidas por veículo aéreo não tripulado
(Universidade Federal de Santa Maria, 2016-08-30)
Get the determination of grain yield and its variability is important in agriculture because it enables the understanding of factors that limit this income, giving more benefits to decision-making in the management of the ...
Malhas de amostragem retangular e hexagonal na geração de mapas de fertilidade e aplicação para agricultura de precisão
(Universidade Federal de Santa Maria, 2016-09-15)
Sample grid s are essential when we want to represent the variation in chemical and physical properties of the soil, being essential to know its features. In this way, this study aimed to relate the efficiency and practicality ...
Desenvolvimento e utilização do aplicativo C7 lavouras no processo de gestão das atividades agrícolas
(Universidade Federal de Santa Maria, 2016-08-29)
Agriculture has become increasingly dynamic, requiring great efficiency in the resource management process, so knowledge of all the technical and financial factors involved is of the utmost importance. The use of mobile ...