Calcium Nitrate
Mostrando 25-36 de 86 artigos, teses e dissertações.
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25. Thiamethoxan on sugar cane, common bean, soybean, citrus and coffee plants: parameters of development and biochemical aspects / Tiametoxam em plantas de cana-de-açúcar, feijoeiro, soja, laranjeira e cafeeiro: parâmetros de desenvolvimento e aspectos bioquímicos
Insecticides and fungicides are often studied to their efficiency in controlling pests and diseases, however can cause physiological effects little known that can affect crop growth. Thiamethoxan is a systemic insecticide from the neonicotinoid group, nitroguanidine family, which acts on nicotinic acetylcholine receptor of insects, damaging their nervous sys
Publicado em: 2010
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26. Transporte de nutrientes e bactÃrias por escoamento superficial devido a aplicaÃÃo de Ãgua residuÃria da suinocultura no solo
The swine activity is a characteristic of the south region of Brazil, and in the State of Parana it has been of outstanding economical and social importance. However, this activity presents low environmental quality due to the generation of great volumes of liquid residues with elevated pollutant power due to his physical, chemical and microbiological charac
Publicado em: 2010
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27. Germinação e produção de compostos fenólicos em plantas de Talinum triangulare (Jacq.) Willd (Portulacaceae) tratadas com homeopatia / Germination and production of phenolic compounds in plants of Talinum triangulare (Jacq.) Willd (Portulacaceae), treated with homeopathy
Talinum triangulare (Jacq.) Willd (Portulacaceae), a Brazilian specie of annual cycle, is used as food and in traditional medicine as a laxative, healing and in the treatment of measles and diabetes. Found in tropical environments, it is well adapted to hot and humid climate, and low soil fertility. The specie spreaded by seed and grows spontaneously, especi
Publicado em: 2010
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28. Avaliação ecotoxicológica da adição de nitrato em sedimentos eutrofizados da Represa Ibirité (Betim MG): experimentos em microcosmos
The objective of the present dissertation was to make a toxicity assessment of the application of calcium nitrate solution as a remediation procedure for sediments of a eutrophic aquatic ecosystem. The study was carried out using microcosms with superficial sediments and water from sediment-water interface of the Ibirité Reservoir located in the metropolita
Publicado em: 2009
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29. Doses de nitrogênio e de enxofre para a recuperação de pastagem com capim-braquiária: atributos de parte aérea, raízes e fertilidade do solo / Nitrogen and sulfur rates for a Signal grass pasture recovery: forage aboveground and roots, and soil fertility attributes
Fertilizer application has been essential to pastures establishment, maintenance and recovery, whereas sulfur supply may be inadequate for grasses receiving high nitrogen rates. The objectives were to study the effects of combined nitrogen and sulfur rates in a degrading Signal grass (Brachiaria decumbens) pasture, by evaluating productive, morphological, ph
Publicado em: 2009
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30. Produção de minitubérculos de batata-semente básica em vaso e hidroponia, em função de doses de nitrogênio / Producing minitubercules of the basic potato-seed in either pot and hydroponics as function of nitrogen doses
New propagation techniques have been proposed for production of the basic potato-seed (Solanum tuberosum L.), such as the propagation by sprout, hydroponics and planting in pots containing substratum. Those new techniques represent an important progress in the potato productive process. In the available literature, there are few studies relating the effect o
Publicado em: 2009
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31. Estrutura organizacional do fitoplâncton nos sistemas lóticos e lênticos da bacia do Tietê-Jacaré (UGRHi-Tietê-Jacaré) em relação à qualidade da água e estado trófico
The aim of this work was to study the phytoplankton structure of lentic and lotic systems of Tietê/Jacaré basin located in São Paulo State and the relationship between the composition and dominance of phytoplankton organisms with the water quality and trophic state of the rivers and lakes of this basin. The Tietê/Jacare basin is composed by three main ri
Publicado em: 2009
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32. Effect of nitrogen and calcium on the initial grown of restinga species. / Efeito da adição de nitrogênio e cálcio no crescimento inicial de leguminosas arbóreas de restinga
The Restinga is one type of sand coastal ecosystems that are suffering with high anthropic impact and is important the consideration of any action related to the recovery and conservation of the last remaining areas. For that, is necessary to study the grown and the best conditions for seedling production of species that are native from these ecosystems. In
Publicado em: 2009
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33. Effects of fertirrigation with effluent of primary treatment of wastewater from swine on the soil and in the productivity and quality of tomato (Lycopersicon esculentum Mill.) / Efeitos da fertirrigação com efluente do tratamento primário da água residuária da suinocultura no solo e na produtividade e qualidade do tomate (Lycopersicon esculentum Mill.)
In this study was analyzed the effects of fertirrigation with filtrated wastewater from swine (FWS) on soil and the physiological, sanitary variables and of tomato production, in drainage lysimeters under protected environment. The experiment was carried out in the lysimeter station at the Hydraulic, Irrigation and Drainage Experimental Area, in campus of th
Publicado em: 2009
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34. Estudo da farinha e da goma de algaroba (Prosopis spp.) / Study of the flour and of the gum the algaroba (Prosopis spp.)
The algarroba (Propopis spp.), a Leguminous tree found in arid and semi-arid regions of Bolivia and Brazil, is underused, mainly due to lack of knowledge of its chemical, physical and functional characteristics. The objective of this study was to determine the chemical composition of the fruit of different species of algarrobo from Bolivia and Brazil, to mak
Publicado em: 2009
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35. Avaliação da contaminação de águas subterrâneas por cemitérios: estudo de caso de Tabuleiro - MG / Evaluation of contamination of groundwater by graveyards: a case study Tabuleiro - MG
This work presents the results of a case study carried out at Tabuleiro graveyard, located at Minas Gerais State, southeast Brazil. The graveyard is located at Formoso river flood plain. Several chemical and physical analyses were done at underground water collected at monitoring wells installed inside the graveyard and on its surrounds. Monitoring wells wer
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/07/2008
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36. ASPECTOS NUTRICIONAIS DE UM SISTEMA AGROFLORESTAL COM EUCALIPTO NO SUL DO RIO GRANDE DO SUL, BRASIL / NUTRITIONAL ASPECTS IN AN AGROFORESTRY SYSTEM WITH EUCALYPTUS IN SOUTH BRAZIL
This study was conducted at an experimental area at Aroeira Farm, belonging to Votorantim Celulose e Papel company, under the geographic coordinates 31 45 50.7 S e 53 50 34.9 W, located in Candiota county. In the area there is an experimental field, where some production factors involved in an agroflorestry system are being monitored, with four different tre
Publicado em: 2008