Fertilizer Technology
Mostrando 13-24 de 28 artigos, teses e dissertações.
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13. VARIABLE-RATE NITROGEN FERTILIZATION WITH N-SENSOR IN MAIZE AND WHEAT / ADUBAÇÃO NITROGENADA À TAXA VARIADA COM O N-SENSOR NAS CULTURAS DO MILHO E TRIGO
Most tropical and subtropical soils present insufficient availability of nitrogen (N) to meet the demand of maize and wheat in order to obtain high yields. The N in plants can be evaluated through the use of sensors of active optical spectrometry, on which stands the N-Sensor, equipment able to determine the N rate to be applied in coverage in real-time. The
Publicado em: 2010
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14. Resposta de forrageiras à diferentes doses de lodo de curtume de tecnologia limpa em condições controladas e a campo / Response of forage to different doses of sludge from tannery of "clean technology" under controlled conditions and field
Industrial processes generate waste such as sludge from tannery "clean technology" that can be used in agriculture, to increase the productivity and supply of nutrients to the soilplant system. On this basis it was aimed to assess the feasibility of using primary sludge from a tannery in clean technology in the fertilization of pasture grasses and forage leg
Publicado em: 2009
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15. Sugarcane crop efficiency in the State of São Paulo between growing seasons of 1990/1991 and 2005/2006. / Eficiência da produção agrícola de cana-de-açúcar no Estado de São Paulo entre as safras 1990/1991 e 2005/2006
The sugarcane is an important resource for food and energy production with scale to help the economy of fossil fuels and the development of new guidelines for socio-economic development in sustainable basis. The State of São Paulo is a region of great potential to meet the sugarcane demand in terms of sugar, ethanol and energy, since it has a long tradition
Publicado em: 2009
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16. NITROGEN DYNAMIC IN NO-TILLAGE SYSTEM AND PARAMETERS FOR MANAGEMENT OF THE NITROGEN FERTILIZER IN THE MAIZE / DINÂMICA DO NITROGÊNIO SOB SISTEMA PLANTIO DIRETO E PARÂMETROS PARA O MANEJO DA ADUBAÇÃO NITROGENADA NO MILHO
Entre os vários nutrientes essenciais na nutrição do milho, sem dúvida, o nitrogênio (N) é um dos mais importantes. No entanto, na maioria das vezes, a quantidade naturalmente disponível no solo é insuficiente para suprir a demanda por N, tornando a complementação com fertilizante nitrogenado no milho fundamental para obtenção de expressivas prod
Publicado em: 2009
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17. Rural credit and agricultural supply in Brazil / Crédito rural e oferta agrícola no Brasil
The rural credit program was created in the late 1960s and became one of the most important agricultural policies in Brazil. It has been subsidized throughout the years, with its interest rate becoming smaller than the market interest rate. The main objective of the Rural Credit Program was to increase technology adoption and production. However, the financi
Publicado em: 2008
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18. ANÁLISE DE MÁQUINAS AGRÍCOLAS DISTRIBUIDORAS DE FERTILIZANTES SEGUNDO REQUISITOS PROJETUAIS / LIFTING OF FARM MACHINERY DISTRIBUTORS OF FERTILIZERS: REQUIREMENTS ANALYSIS SECONDS PROJETUAIS
The Brazilian agriculture develops year by year. Nowadays, it is noticed that studies addressed for a constant increase for an implantations of technological systems in machineries and management of rural properties are accomplished, offering this way options in that the technology applied in a property can provide better results in production, in quantity,
Publicado em: 2008
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19. Perdas por volatilização e eficiência agronômica da mistura de uréia com zeolita natural aplicada na cultura da roseira (Rosa spp.) / Losses by volatilization and agronomical efficiency in the use of nitrogen obtained from urea of natural zeolites in rose trees (Rosa spp.).
O trabalho objetivou avaliar as perdas de N-NH3 por volatilização (PNV) e a eficiência agronômica dos fertilizantes zeolíticos obtidos através de misturas de uréia com zeolitas naturais. O primeiro experimento foi realizado na casa de vegetação da Embrapa Solos, RJ, sendo as unidades experimentais compostas por bandejas plásticas preenchidas com so
Publicado em: 2008
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20. RECOMMENDATION OF PHOSPHATE AND POTASSIUM FERTILIZATION TO THE MAIN GRAIN CROPS UNDER NOTILLAGE IN PARAGUAY / RECOMENDAÇÕES DE FERTILIZAÇÃO FOSFATADA E POTÁSSICA PARA AS PRINCIPAIS CULTURAS DE GRÃOS SOB SISTEMA PLANTIO DIRETO NO PARAGUAI
The recommendations of fertilization have as main purpose to facilitate and aid the decisions about application of fertilizers necessary to obtain yields of maximum economic efficiency. Pointing out the importance of the numerical tables indications, should be also important the crops and area history, the history of fertilizations and calcareous use, the yi
Publicado em: 2008
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21. Fertilizantes de leguminosas: tecnologia inovadora de adubação verde para provisão de nitrogênio em sistemas orgânicos de produção. / Legume fertilizers: innovative technology of green manuring for nitrogen supply in organic farming systems.
One of the main limitations to the organic food production is the reduced availability of low cost and efficient nitrogen (N) sources. Green manuring practices, in rotation or intercropped, have been used, but hardly are they able to supply crop needs. This dissertation presents an innovative technology of green manuring, derived of the cutting, dehydration
Publicado em: 2007
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22. Taxonomy and etnobotany of Leguminosae Adans. in fragments and agroforest systems in Zona da Mata Mineira / Taxonomia e etnobotânica de Leguminosae Adans. em fragmentos florestais e sistemas agroflorestais na Zona da Mata Mineira
The work consists of the taxonomic and etnobotamical study of Leguminosae in forest fragments and agroforest systems (AFSs) in the Municipality of Araponga, Minas Gerais. The diversity of Leguminosae that occur in two forest fragments and in seven (AFSs) locatede around the Parque Estadual da Serra do Brigadeiro (PESB) is presented, with etnobotanical inform
Publicado em: 2007
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23. Desenvolvimento de mudas de palmeira-rÃfia cultivada sob diferentes sombreamentos e nutriÃÃo foliar / Growth of Seedlings of Lady Palm Cultivated Under Different Shades and Foliar Fertilizer.
The palm Rhapis excelsa is an ornamental plant with commercial value. It demands, in its initial stage, the protected cultivation under special structures and being adapted in different species. Proper lighting balanced with fertilizers/nutrients are very important for the development of plants in high tech agriculture. Not only the amount of lighting but al
Publicado em: 2006
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24. 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