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Dinâmica do arsênio no sistema solo - água - arroz na América do Sul: distinções fisiológicas entre cultivares e ocorrência em grãos comerciais
(Universidade Federal de Santa Maria, 2016-02-29)
Rice is the main source of inorganic arsenic (Asi), a carcinogenic substance, in the human diet. In this sense, there is great interest in reducing the accumulation of As in rice grains. To achive this, field management / ...
Concentrações de fósforo e nitrogênio no crescimento da alface em cultivo sem solo
(Universidade Federal de Santa Maria, 2018-04-27)
The goal of this research was to evaluate phosphorus and nitrogen concentrations on
growth and in soilless lettuce plants. Experiments were carried out inside a
polyethylene greenhouse at Plant Science Department at the ...
Nitrogênio e água no crescimento de cultivares de alface
(Universidade Federal de Santa Maria, 2016-03-11)
The goal of this research was to determine relationships between nitrogen (N) and water availabilities and growth of lettuce plants. In the first chapter, experiments were conducted in autumn-winter and spring-summer 2013 ...
Resposta da soja e do repolho à concentração de nutrientes e volume do meio radicular
(Universidade Federal de Santa Maria, 2016-03-03)
In soil preparation methods either by no till or by raised beds for vegetable crop
production, root growth can be reduced by subsurface compaction and concentration of
fertilizers in the surface layer. The goal of this ...
Efeitos da interação entre fósforo e excesso de ferro nas características morfométricas e fisiológicas de cultivares de arroz (Oryza sativa L.)
(Universidade Federal de Santa Maria, 2017-06-26)
Iron (Fe) is an important micronutrient for several physiological processes of plants. However, Fe toxicity is a problem that affects many areas of rice cultivated in lowland environments. The antagonistic interaction ...
Atributos de qualidade em sementes de trigo recobertas com zinco durante e após armazenamento
(Universidade Federal de Santa Maria, 2011-11-21)
Seed coating treatments are among the most interesting and potentially beneficial for
enhancing the performance of the same. This fact, which helps the producer to improve the
performance and development of seedlings, ...
Nutrição mineral e toxidez de cádmio em ginseng brasileiro (Pfaffia glomerata (Spreng.) Pedersen)
(Universidade Federal de Santa Maria, 2007-12-28)
Pfaffia glomerata (Spreng) Pedersen, also known as Brazilian ginseng, has been used in popular medicine due to its important medicinal qualities. This study aims to characterize the nutrient needs of P. glomerata, (Chapter ...