Buscar
Itens para a visualização no momento 11-19 of 19
Melhoria da precisão nas estimativas de produção em culturas olerícolas relacionado ao número de plantas e colheitas
(Universidade Federal de Santa Maria, 2014-12-19)
The variability in crop production oleraceous affects planning and the quality of experiments, inflating the experimental error, and leading to erroneous conclusions with low experimental precision and reliability. The ...
Crescimento e produtividade da soja e progresso de ferrugem asiática em diferentes condições de disponibilidade de nitrogênio
(Universidade Federal de Santa Maria, 2014-03-31)
The objective of this work was to determine the effect of mineral nitrogen fertilization rates on nodulation, plant growth, yield and the effect of nitrogen rates on the progress of Asian soybean rust (Phakopsora pachyrhizi ...
Herbicidas dessecantes na fauna edáfica e genotoxicidade
(Universidade Federal de Santa Maria, 2014-08-21)
The use of direct seeding system brought changes on the weed management, by the mean of increasing of chemical control. The intense use of herbicides may have effect over the ecology of non-target soil organism. Two studies ...
Composição química e qualidade de sementes de variedades crioulas de milho no armazenamento
(Universidade Federal de Santa Maria, 2014-01-15)
Preserving landrace maize seeds variety has a cultural and biodiversity relevance. Besides, genetic variability conservation of landrace maize seeds has a purpose on sustainability of the familiar growers activity. Thereby ...
Risco de ocorrência de excesso hídrico para a cultura do girassol na região central do Rio Grande do Sul
(Universidade Federal de Santa Maria, 2014-02-21)
The approach to knowledge about the probabilities of water excess occurrence enables
the planning sunflower crop management, mainly about the sowing period. The objective of
this study was quantify and analyze the ...
Tamanho de ensaio de uniformidade para estimação do tamanho de parcela em hortaliças
(Universidade Federal de Santa Maria, 2014-05-16)
The aim of this work were determine the optimum plot size and the uniformity assay size for estimating the optimum plot size in order to evaluate the fresh fitomass of lettuce plants and the mass of fruits of pepper, tomato, ...
Parâmetros de ajustes dos modelos de desenvolvimento foliar de cana-de-açúcar
(Universidade Federal de Santa Maria, 2014-02-28)
The objectives of this thesis were (i) to identify the expanded leaves number (LNexp) and tips (LNtip) from which there is reduction in the contribution of culm reserves to leaf appearance rate in sugarcane and (ii) the ...
Tratamento de sementes de milho: avaliações fisiológicas, bioquímicas, de crescimento e da produção
(Universidade Federal de Santa Maria, 2014-02-26)
The aim of this study was to evaluate the effect of growth regulator products in seed treatment, on the physiological potential and biochemical activity at normal conditions and drought; the physiological potential in salt ...
Plantas de cobertura, cultivares e nematicidas no manejo de meloidogyne javanica e pratylenchus brachyurus em soja
(Universidade Federal de Santa Maria, 2014-12-11)
The root-knot nematode Meloidogyne javanica is a major plant parasitic nematode of soybean. Its control should be based on the use of all available methods. Thus the objective of the study was to evaluate the effect of ...