Crop Systems Soil Conservation
Mostrando 13-24 de 25 artigos, teses e dissertações.
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13. TEMPERATURE AND HUMIDITY OF A SANDY LOAM SOIL CULTIVATED WITH MAIZE / TEMPERATURA E UMIDADE DE UM SOLO FRANCO ARENOSO CULTIVADO COM MILHO
Water is a key factor for crop yields, and causes major fluctuations in productivity, especially for maize cultivated in southern Brazil. Mulching the soil surface, temperature and soil moisture are factors closely linked and, when handled properly, can provide the increases crop yields. The soil water conservation is an important aspect for more stable and
Publicado em: 2010
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14. Effects of management on physical properties and total organic carbon of a red-yellow argisol located in the Zona da Mata of Minas Gerais State / Efeitos do manejo em propriedades físicas e no carbono orgânico total de um argissolo vermelho-amarelo localizado na Zona da Mata Mineira
When the replacement of natural ecosystems for agroecosystems occurs, generally it is perceived a physical deterioration and a decline in soil carbon content. This degradation can be attributed to intensive soil tillage, exposing it to the action of climatic factors, causing erosion, mineralization of organic matter and oxidation of organic carbon in soil. T
Publicado em: 2009
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15. FLUXO DE GASES DE EFEITO ESTUFA EM SISTEMAS DE PREPARO DO SOLO E ROTAÇÃO DE CULTURAS NO PLANALTO DO RIO GRANDE DO SUL / GREENHOUSE GASES FLUX IN SYSTEMS OF SOIL TILLAGE AND CROP ROTATION IN THE PLANALTO REGION OF RIO GRANDE DO SUL
The main greenhouse gases (GHG) are the nitrous oxide (N2O), methane (CH4) and carbon dioxide (CO2), whose atmosphere concentrations increased in an unprecedented rate since the Industrial Revolution. This work aim evaluates the GEE emissions of spring/summer season in different soil management systems located in the Planalto region of Rio Grande do Sul Stat
Publicado em: 2009
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16. SISTEMAS DE CULTURAS EM PLANTIO DIRETO ADAPTADOS À PEQUENA PROPRIEDADE RELACIONADOS COM A EROSÃO E ATRIBUTOS DE UM ARGISSOLO VERMELHO / CROP SYSTEMS UNDER NO TILLAGE ADAPTED TO SMALL FARM AND ITS RELATIONSHIP WITH EROSION AND ATTRIBUTES OF A TYPIC PALEUDALF
Em se tratando de sistemas de manejo do solo, são raros os trabalhos de pesquisa que são conduzidos por um período longo o suficiente para que muitos atributos do solo possam expressar-se convenientemente. O sistema plantio direto influencia muitos atributos do solo. O presente estudo teve como objetivos avaliar o efeito do sistema plantio direto com uso
Publicado em: 2009
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17. Forage based animal production systems and sustainability, an invited keynote
Forages are essential for the successful operation of animal production systems. This is more relevant to ruminants which are heavily dependant upon forages for their health and production in a cost-effective and sustainable manner. While forages are an economical source of nutrients for animal production, they also help conserve the soil integrity, water su
Revista Brasileira de Zootecnia. Publicado em: 2008-07
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18. Sustentabilidade e qualidade do solo em propriedades de cana-de-açúcar orgânica e convencional / Sustentability and soil quality in organic and conventional sugarcane establishments
Soil quality evaluation is an important strategy, as it allows producers to focus agriculture techniques to constantly develop and maintain adequate, selfsustainable productions equilibrium. This study evaluated rural activities environmental impact by the system APOIA-NovoRural, as well as the influence of different sugarcane production systems on soil qual
Publicado em: 2008
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19. Sustentabilidade e qualidade do solo em propriedades de cana-de-açúcar orgânica e convencional / Sustentability and soil quality in organic and conventional sugarcane establishments.
A avaliação da qualidade do solo é uma importante estratégia, pois permite aos produtores direcionar técnicas agrícolas para melhorias constantes visando estabelecer e manter produtividades adequadas ao equilíbrio de um sistema auto-sustentável. Este trabalho avaliou o impacto ambiental das atividades rurais através do sistema APOIA-NovoRural, bem c
Publicado em: 2008
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20. TILLAGE SYSTEMS OF THE TOBACCO CROP WITH EMPHASIS TO THE MANAGEMENT OF THE PRACTICES AND SOIL CONSERVATION / SISTEMAS DE CULTIVO DA CULTURA DO FUMO COM ÊNFASE ÀS PRÁTICAS DE MANEJO E CONSERVAÇÃO DO SOLO
Sistemas de manejos do solo com o mínimo de revolvimento e com palha em superfície predominam na maioria dos cultivos agrícolas, no Sul do Brasil. A utilização do plantio direto na cultura do fumo está sendo iniciada, mas restrita a locais isolados e a alguns agricultores, que, via testes empíricos e adaptação de equipamentos, buscam preservar o sol
Publicado em: 2006
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21. 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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22. COMPACTAÇÃO EM LATOSSOLOS E ARGISSOLO E RELAÇÃO COM PARÂMETROS DE SOLO E DE PLANTAS / COMPACTAÇÃO EM LATOSSOLOS E ARGISSOLO E RELAÇÃO COM PARÂMETROS DE SOLO E DE PLANTAS
Soil compaction is closed related to agriculture as well as animal production management. Soil quality improvement has not been always achieved with use of soil conservation practice as no-tillage or use of animal production integrated to agriculture management. Agricultural traffic and soil management effects on soil compaction are not well known, specially
Publicado em: 2005
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23. Diagnose of water use on irrigation of crops in hydrological basin of Jundiai-Mirim river / SP / Diagnostico do uso da agua na irrigação de culturas na bacia do Rio Jundiai-Mirim / SP
Recent researches demonstrate that the use of water for agriculture represents 60% of total consumption of freshwater in Brazil and that many irrigation systems do not have any control of the use of water for this activity. Also, it is estimated that 40% of the water applied in irrigation is misused by percolation and superficial drainage, what generates a g
Publicado em: 2004
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24. Ecologia e genetica da mandioca na agricultura itinerante do litoral sul paulista : uma analise espacial e temporal
This study focuses the inter-relationships between the men, the farm environment, and the domesticated crop species, under the perspective of the evolutionary dynamics of cultivated plants. The main objective of this study was to evaluate the features related to the conservation, loss, and amplification of the varietal diversity of manioc (Manihot esculenta
Publicado em: 2004