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Itens para a visualização no momento 21-30 of 1752
Aspectos fisiológios de sementes, produtividade de grãos de trigo submetidos a doses de nitrogênio, inoculação e aplicação foliar de Azospirillum brasilense
(Universidade Federal de Santa Maria, 2016-07-26)
The use of chemical fertilizers as well as providing greater productivity, is costly. The use of bacteria of the genus Azospirillum brasilense represent a potential tool to reduce production costs while improving productive ...
Toxidez de alumínio em genótipos de Pfaffia glomerata (Spreng.) Pedersen e Pfaffia tuberosa (Spreng.) Hicken
(Universidade Federal de Santa Maria, 2008-02-22)
Al toxicity, especially in acid soils, is a determinant factor of lower productivity for
several cultures and, although some studies have been developed to elucidate this problem,
studies on medicinal plants are extremely ...
Desenvolvimento do arroz e do arroz vermelho: modelagem e resposta à mudança climática
(Universidade Federal de Santa Maria, 2008-02-28)
Increases of 1.1 to 6.4°C in temperature are projected by the end of the XXI century in
several locations, including Brazil. Among processes that may be affected by increasing
temperatures is the duration of the developmental ...
Seleção de clones de batata de curta dormência, alta qualidade de processamento e adaptados aos cultivos de primavera e outono
(Universidade Federal de Santa Maria, 2008-02-25)
Selection of potato clones might be done during spring and autumn grown seasons of Rio Grande do Sul (RS). These grown seasons have contrasting conditions of temperature,
photoperiod and solar irradiation, which may affect ...
Genética dos teores de cálcio e de ferro em grãos de feijão comum
(Universidade Federal de Santa Maria, 2008-02-15)
The common bean has significant levels of calcium and iron in grains, providing that
this legume is used in human food controlling minerals deficiency. Furthermore, genetic
variability for these minerals were observed, ...
Pisolithus microcarpus e óleo essencial em três espécies nativas em solo contaminado com cobre
(Universidade Federal de Santa Maria, 2014-02-21)
Mining areas and constantly receiving addition of industrial waste are subject to increased levels of copper in the soil. Copper when in high amounts in the soil can adversely affect vegetation preventing the cultivation ...
Deficiência de ferro em grápia: efeito da adubação fosfatada e potássica
(Universidade Federal de Santa Maria, 2005-04-28)
Previous studies done with grápia (Apuleia leiocarpa (Vog.) Macbride) showed that the increase in the P fertilization induced visual symptoms of Fe-deficiency in the younger leaves. At cellular level, potassium may contribute ...
Influência da radiação solar e da temperatura do ar na produção de pepino em estufa plástica
(Universidade Federal de Santa Maria, 2004-07-15)
It was studied the influence of the variables global solar radiation and air temperature about the production of cucumber. It was used data of yield was studied was used data of production of each harvest along the ...
Influência da população de plantas, doses de nitrogênio e controle de doenças na produção e qualidade de grãos e sementes de arroz irrigado
(Universidade Federal de Santa Maria, 2005-04-26)
The objective of this study was to evaluate the effect of plant densities, nitrogen levels and foliar diseases control on grain yield and seed quality of irrigated rice. An experiment was conducted in Santa Maria RS ...
Modelagem do desenvolvimento da batata (solanum tuberosum l.) à campo
(Universidade Federal de Santa Maria, 2005-01-14)
Potato (Solanum tuberosum L.), Solanaceae, native of Cordilheira dos Andes, South America, is the fourth food crop worldwide, being only overcome by wheat, rice and corn. Potato production in Brazil is concentrated in the ...