Liquid Fertilizers
Mostrando 13-24 de 24 artigos, teses e dissertações.
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13. Utilization of rocks and ectomycorrhizal fungi to promote growth of eucalypt
The utilization of rocks as fertilizers is limited by their low solubility. However, solubilization may be achieved by some micro-organisms, such as ectomycorrhizal fungi (ECMf). The aim of this study was to evaluate the potential of seven isolates of ECMf to solubilize two rocks, alkaline breccia and granite, and to liberate potassium and phosphorus for Euc
Brazilian Journal of Microbiology. Publicado em: 2010-10
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14. Solubilization of phosphorus by endofhytic bacteria / Solubilização de fósforo por bactérias endofíticas
Soil microorganisms directly affect fertility and plant yield. Among these, inorganic phosphate solubilizers enhance phosphorus availability, and may increase phosphorus fertilizers efficiency. This work aimed to select inorganic phosphorus solubilizing bacteria as potential plant growth promoters. On the first stage, previously obtained isolates, from leave
Publicado em: 2010
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15. EFICIÊNCIA DA MANIPUEIRA COMO QUELATIZANTE DE ZINCO E SEU EFEITO NA NUTRIÇÃO MINERAL DO FEIJOEIRO (PHASEOLUS VULGARIS L.) / THE EFFICIENCY OF MANIPUEIRA AS A ZINC CHELATE, AND ITS EFFECT ON ROOT GROWTH AND MINERAL NUTRITION IN BEAN CULTIVATION.
Cassava (Manihot esculenta, Crantz) is considered a vital agricultural crop due to its role as a staple food for low-income populations, primarily in the North and Northeast of Brazil, and is used as raw material for the manufacturing of a number of products such as flour and starch. During the manufacturing of these products, a potentially toxic liquid resi
Publicado em: 2010
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16. Avaliação dos efeitos da fertilização nitrogenada (uréiae uréia com NBPT) e do Fungicida maxim - XL na produção de fumonisinas por Fusarium verticillioides
Corn is an economically important cereal worldwide, but it is susceptible to toxigenic fungi contamination, mainly Fusarium verticillioides. This fungus produces fumonisins, which cause several mycotoxicoses and probably esophageal cancer in humans. Due to the problems caused by F. verticillioides and fumonisin contamination in corn, during its cultivation s
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/02/2009
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17. Contribution for the Brazilian database to support life cycle assessment: nitrogen fertilizers. / Contribuição ao banco de dados brasileiro para apoio à avaliação do ciclo de vida: fertilizantes nitrogenados.
The main limitation of Life Cycle Assessment (LCA) is the necessity for collection a large number of representative data for the region under study. This limitation can get rounded by the construction of regional databases, or inventories of elements that are common to the life cycle of many products. Among these elements are the chemical fertilizers. In thi
Publicado em: 2009
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18. IrrigaÃÃo e fertirrigaÃÃo em um sistema de aspersÃo convencional submetido à tÃcnicas de controle estatÃstico de qualidade. / Irrigation and fertigation in sprinkler system submitted to techniques of statistical quality control
The contribution of irrigation in the alimentary supply, is due to the fact of more and more to look for more efficient systems, monitoring the indexes of uniformity of distribution of the water. The application of fertilizers through irrigation water took very big pulse in the last times, mainly due to the emergence of pressurized systems, of the tunnels of
Publicado em: 2008
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19. Atributos químicos e físicos do solo influenciados pela aplicação de dejetos suínos em lavoura sob plantio direto
The increase in the confined swine production has generated great volume of slurries, being in general applied on the soil as fertilizers. Thus, fertilizations in excess and, or, continued with this residue will be able to cause environmental impacts undesirable, being distinguished the soil chemical, physical and biological disequilibria, pollution of water
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/06/2007
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20. Characterization of organic and organomineral fluid fertilizers / Caracterização de fertilizantes orgânicos e organominerais fluidos
O uso de fertilizantes orgânicos e organominerais fluidos têm crescido bastante no mundo e também no Brasil, nas últimas duas décadas. Esse rápido crescimento da demanda por esses produtos levou o Ministério da Agricultura, Pecuária e Abastecimento a buscar novas metodologias para a verificação da qualidade dos mesmos. Este trabalho tem como objeti
Publicado em: 2007
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21. ANÁLISE ECONÔMICA E EXPERIÊNCIA COMPARATIVA ENTRE AGRICULTURA DE PRECISÃO E TRADICIONAL / ECONOMICAL ANALYSIS AND COMPARATIVE EXPERIENCE BETWEEN PRECISION AND TRADITIONAL AGRICULTURE
The study was developed in the farm Anna, located in the municipal district of Não-me-Toque RS, in the period included among the crops of 2002/03 and 2005/06. In the precision farming worked areas were generated yield maps of the culture, with information collected through sensors that equip the harvester, maps of soil fertility, with are based in geo-refer
Publicado em: 2007
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22. APPLICATION OF PRECISION AGRICULTURE TECHNIQUES IN SMALL FARMERS / APLICAÇÃO DE TÉCNICAS DE AGRICULTURA DE PRECISÃO EM PEQUENAS PROPRIEDADES
The adoption of precision agriculture techniques finds great limitation because of the high cost, not always guaranteeing the expected economic return. Among the consequence of this elevated cost it is the restriction use of this technology in small farmers, characterized by the family farm. The present work approaches a bibliographical study about the situa
Publicado em: 2006
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23. TECHNICAL, ECONOMICAL AND ENVIRONMENTAL ASPECTS OF ORGANIC NUTRIENT SOURCES ASSOCIATED WITH SOIL TILLAGE SYSTEMS / ASPECTOS TÉCNICO, ECONÔMICO E AMBIENTAL DO USO DE FONTES ORGÂNICAS DE NUTRIENTES, ASSOCIADAS A SISTEMAS DE PREPARO DO SOLO
The manures have been used as organic nutrient sources in many soil and climatic conditions, and their effects on technical, economic and environmental aspects are dependent on their characteristics and it can be changed by soil tillage. Many studies have been performed to analyse these aspects, however a few of them have analysed the interactions of these t
Publicado em: 2005
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24. Biodegradation of 1,2,3- and 1,2,4-Trichlorobenzene in Soil and in Liquid Enrichment Culture †
The biodegradation of radiochemically pure (99%) 1,2,3- and 1,2,4-trichlorobenzene (TCB) in soil was investigated. Experimental difficulties posed by the high volatility and slow biodegradation rate of the TCBs were partially overcome by using a specially designed incubation and trapping apparatus. Evolution of 14CO2 from active versus poisoned soil dosed wi