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Temperatura e umidade de um solo franco arenoso cultivado com milho
(Universidade Federal de Santa Maria, 2010-03-01)
Water is a key factor for crop yields, and causes major fluctuations in productivity, especially for maize cultivated in southern Brazil. Mulching the soil surface, temperature and soil moisture are factors closely linked ...
Influência dos resíduos vegetais na superfície do solo na dinâmica de evaporação da água e temperatura do solo
(Universidade Federal de Santa Maria, 2010-05-21)
The availability and proper management of water represent fundamental aspects of the development of sustainable agricultural production systems, since it has direct impact on crop productivity. Maintaining crop residues ...
Mineralogia e liberação de potássio em solos de várzea do Rio Grande do Sul
(Universidade Federal de Santa Maria, 2010-04-09)
The cultivation of flooded rice in Rio Grande do Sul (RS) does not always respond to potassium (K) fertilization, even when the availability is considered low or medium. Other K forms not estimated by the method of analysis ...
Impacto de agroquímicos usados na lavoura de arroz irrigado sobre a qualidade da água de irrigação e na comunidade zooplanctônica
(Universidade Federal de Santa Maria, 2010-02-26)
Agrochemicals are intensely used on rice (Orysa sativa L.) paddy culture, and depending on their environmental persistence and toxicity they may contaminate water bodies and affect non-target organisms. Both herbicides and ...
Superação da dormência de sementes e controle químico de cordas-de-viola (ipomoea spp.) em soja resistente ao glifosato
(Universidade Federal de Santa Maria, 2010-07-09)
Morningglory is an annual plant reproduced by seeds. Seed germination occurs in streams during spring and summer making it difficult to control. Its occurrence has
increased in soybean crops in southern states by the ...
Qualidade de sementes e grãos de arroz irrigado em função da aplicação de fungicida, época de colheita e período de armazenamento
(Universidade Federal de Santa Maria, 2010-02-25)
Protection of irrigated rice plants using fungicides is growing every year as observation of fungal diseases is increasing. Higher occurrence of disease is observed when
seeding is conducted after the recommended period. ...
Milho bt e inseticidas no manejo de lepidópteros-praga
(Universidade Federal de Santa Maria, 2010-02-01)
The objectives of this study were to evaluate the effects of Bt toxin and seeds treatment with insecticides (imidacloprid + thiodicarb) on initial growth of corn and the control of Spodoptera frugiperda (J. E. Smith) in ...
Transporte de agrotóxicos e uso de água em diferentes manejos de irrigação de arroz
(Universidade Federal de Santa Maria, 2010-02-26)
The flooded rice production system is a heavily user of chemicals and water for irrigation. Due to flooding water can runoff from the fields or been lost throughout
percolation. Along with this water, pesticides can be ...
Aplicação de produtos da fermentação e ultrabaixo oxigênio para a conservação de maçãs royal gala
(Universidade Federal de Santa Maria, 2010-02-12)
The aim of this work was to evaluate the effect of post harvest ethanol or acetaldehyde application and to compare them with consolidated storage techniques on the quality
maintenance of Royal Gala‟ apples. Also, we aimed ...
Influência de cultivares e densidades de plantas sobre a eficácia da proteção química no patossistema soja-phakopsora pachyrrizi
(Universidade Federal de Santa Maria, 2010-02-26)
Aiming to evaluate the response of ten soybean cultivars subjected to three arrangements of plants and eight fungicide programs in terms of expression and the development of Asian rust, penetration of light on the canopy, ...