Fertility Of The Ground
Mostrando 13-23 de 23 artigos, teses e dissertações.
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13. Estrutura, estratificação e grupos ecológicos de um fragmento de floresta estacional semidecidual (Uberaba, MG)
Seasonal semideciduous forests (FES) occur in patches mainly in the region of the Cerrado of central Brazil, had occupied a expressive area throughout Minas Gerais state. These formations generally occur on fertile and humid soil, characterized for the climatic changes that determines the seasonal deciduousness of the dominant tree individuals, in reply the
Publicado em: 2009
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14. Avaliação das alterações nos atributos físicos e químicos de um latossolo vermelho-amarelo submetido à aplicação de água de reúso / Evaluation of changes in physical and chemical attributes of a red-yellow latosol submitted to the implementation of water reuse
The use of treated sewage effluent to save the ponds used for irrigation has been of great interest in agriculture, and the unregulated use of this practice can cause changes in physical and chemical behavior of the soil. This practice has been of great interest in view of reducing the quantity of water withdrawal from the springs and its preservation, avoid
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/12/2008
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15. ANALYSIS Of The SPECTRAL REFLECTANCE OF SAMPLES Of the GROUND, And ITS RELATION WITH DIGITAL MODELS OF FERTILITY. STUDY OF CASE IN PRECISION AGRICULTURE. / ANÁLISE DA REFLECTÂNCIA ESPECTRAL DE AMOSTRAS DO SOLO E SUA RELAÇÃO COM MODELOS DIGITAIS DE FERTILIDADE: ESTUDO DE CASO EM AGRICULTURA DE PRECISÃO.
This study aimed to examine the spectral reflectance of samples of soil, and establish its relationship with digital models of chemical attributes, in the development of digital models of the soil (maps of fertility and spectral reflectance of the sample), used in management of crops where there is applicability of Precision Agriculture. The tool used was th
Publicado em: 2008
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16. Adubação nitrogenada com uréia e adubos verdes na cultura do arroz e efeito residual no feijoeiro / Nitrogen fertilization with urea and green manures in rice crops and its residual effect in bean crop
The association of green manures and mineral N sources is becoming a promising option for nitrogen fertilizer management, with the objective of recovering the soil fertility, increase of soil organic matter, reduce the loss of mineral N from the readily available sources, and in the case of legume incorporate biologically fixed N to the soil. The objectives
Publicado em: 2008
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17. Burning of the sugarcane crop: biomass aspects, soil, fertility and CO2 emission in atmosphere / Queima do canavial: aspectos sobre a biomassa vegetal, fertilidade do solo e emissão de CO2 para atmosfera
The objective of the work was to evaluate the changes that occur in the ground, the plant and the atmosphere immediately after the practical one of the burning of the canavial. For in such a way, it compared the effect of the burning of the sugarcane plantation in the ground and the proper sugar cane, thus, samples of these items in two situations had been c
Publicado em: 2007
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18. Perfil dos produtores de arroz irrigado da fronteira oeste do RS, ligados a Pirahy Alimentos / Profile of the producers irrigated rice(Orizum sativum L.), suppliers-partners of the agroindustria Pirahy Foods
The present work had how I aim to obtain informations on current situation of producers irrigated rice (orizum sativum l.), suppliers-partners of the Agroindústria Pirahy Food, in Saint western Borja-frontier of the Rio Grande do Sul, carried out through pesquiza carried out with producers of irrigated rice located in the local authorities of Saint Borja, I
Publicado em: 2007
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19. Suprimento combinado de fósforo e magnésio para a produção e nutrição do capim-Tanzânia / Combined supply of phosphorus and magnesium for Tanzania grass production and mineral nutrition
Due to the potential for high yield and nutritional value, Tanzania grass stands out as an excellent option cultivar of the Panicum maximum specie to the Brazilian livestock production. It is known that this grass usually need high soil fertility. The objective was to evaluate the response of Tanzania grass to combinations of phosphorus and magnesium rates,
Publicado em: 2007
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20. Análise ambiental : reflexões sobre os processos de degradação ambiental no município de Bela Vista do Paraíso
Bela Vista do Paraíso borough, as well as others counties that make up the Paraná State?s North region, originated to do emphasis at coffee?s cultivation, what dispersed quickly around this space, become the great sensation of that moment. The quality of lands brought to this place poor families and contractors of industrial estates who didn?t linger to st
Publicado em: 2006
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21. Structure of a population of Esenbeckia leiocarpa Engl. (Rutaceae) in a seasonal semidecidual forest in southeast Brazil / Estrutura de uma população de Esenbeckia leiocarpa Engl. (Rutaceae) numa floresta estacional semidecidua no Sudeste do Brasil
The present study investigated the structure of a population of Esenbeckia leiocarpa, popularly known as ?guarantã?, a canopy species, not pioneer and common in the region studied. The study was carried out in an area of 3.2 ha of seasonal semi-deciduous forest in Campinas ? SP. We randomly installed 50 plots of 10 x 10 m, in a total of 0.5 ha. In each 100
Publicado em: 2005
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22. Eucalyptus sp. in function of nutrient status and soil fertility in three regions of the state of São Paulo, Brazil. / Produtividade do Eucalyptus sp. em função do estado nutricional e da fertilidade do solo em diferentes regiões do Estado de São Paulo.
Eucalyptus sp. stands, in the state of São Paulo, Brazil, present some nutrient limitations that can implicate growth and sustainability of the forests in the future. It happens because of high nutrient exportation during timber harvesting and also because of the low soil fertility and insufficient use of fertilizers in these areas. Through classic methodol
Publicado em: 2002
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23. The associated Planting among banana (Musa acuminata cv. Big it Sleeps) and "feijão-de-porco" (Canavalia ensiformis (L.) D. C.): an agronomic evaluation of the effects of the competition for water, nitrogen and luminous energy / O plantio associado entre banana (Musa acuminata cv. Grande Nane) e feijão-de-porco (Canavalia ensiformis (L.) D. C.): uma avaliação agronômica dos efeitos da competição por água, nitrogênio e energia luminosa
In tropical regions, intensive banana (Musa accuminata) monocropping has severe agronomic and environmental impacts, and the sustainability of this production is actually highly compromised. Yield reductions are principally due to the decrease of soil fertility and root systems damages by sod fungus and nematodes. Several alternatives actually aim to improve
Publicado em: 2002