Buscar
Itens para a visualização no momento 51-60 of 142
Fertilização nitrogenada do algodoeiro prescrita por sensor óptico no oeste da Bahia
(Universidade Federal de Santa Maria, 2014-02-25)
Proper nutrition nitrogen in cotton directly affects obtain high productivity of the crop. Decision making based on the use of sensors is an alternative to increase the efficiency of fertilization with this nutrient, ...
Fertilização a taxa variável de nitrogênio em trigo integrando sensoriamento de cultura e zonas de manejo na região Sul do Brasil
(Universidade Federal de Santa Maria, 2016-07-25)
There are basically two approaches for variable rate of nitrogen prescription, the first one based on management zones (predictive) and the second one based on remote sensing (reactive). These approaches have complementary ...
Detecção de plantas daninhas em pré-semeadura com base em dados espectrais de campo
(Universidade Federal de Santa Maria, 2019-08-03)
According the concept of precision agriculture and new technologies for agriculture, there were several studies to improve tools at an extremely important stage in crop management, which is the identification and control ...
Relações de atributos químicos do solo e a produtividade das culturas de soja e milho
(Universidade Federal de Santa Maria, 2013-05-28)
With the advance the adoption of precision agriculture in Brazil, growing use the technological tools georeferenced soil sampling and crop yield. Relations and crossing data information between these two tools can assist ...
Resposta de um monitor de produtividade com sensor ótico a variações de produtividade em arroz irrigado
(Universidade Federal de Santa Maria, 2011-04-08)
Precision Farming (PF) has been studied mainly in soybean, corn and wheat crops,
and its use has been increasing in commercial fields. However, in irrigated rice crop,
the use of this technology has not yet been fully ...
Influência ambiental na qualidade da água do Arroio Doze Passos, Ouro, SC
(Universidade Federal de Santa Maria, 2012-06-11)
Water is the main factor for the development and growth of communities, especially the rural ones. The objectives of this study were to evaluate the water quality and to determine the influence of natural and anthropogenic ...
Influência do relevo e de diferentes usos sob atributos físicohídrico em latossolo
(Universidade Federal de Santa Maria, 2016-10-03)
Soil is an important means of supplying water to meet the need for agricultural management systems. It
is its physical-water properties that make it capable of regulating the availability of water. This study
evaluates ...
Influência do deslizamento da roda motriz de uma semeadora/adubadora de plantio direto no espaçamento longitudinal de sementes de milho
(Universidade Federal de Santa Maria, 2010-03-19)
The present work was conducted to evaluate the operational conditions of a no tillage system for maize culture. Two different speeds was considered, 4.1 km/h and 7.2 km/h in three different depths of planting, 3, 5 and 7 ...
Simulação do rendimento de grão de arroz irrigado em cenários de mudança climática
(Universidade Federal de Santa Maria, 2010-02-18)
Climate change projections indicate that current atmospheric CO2 concentrations (380 ppmv) will double by the end of this century, which may lead to an increase in crop yield due to an increase in photosynthesis. However, ...
Síntese e aplicação de nanofiltro contendo nanotubos de carbono na retenção de contaminantes em água
(Universidade Federal de Santa Maria, 2015-06-05)
This work aimed to use Multiple Walls Nanotubes (MWNT) in order to synthesize a nanofilter to remove water contaminants and to test the nanofilter manufactured in removing Benzothiophene and pesticides present in water. ...