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Registros recuperados: 61 | |
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MARINO, W.; MARSCHNER, P.; GOLLNITZ, I.; SCHROTH, G.; EMMERICH, S.; GASPAROTTO, L.; LEHMANN, J.; UGUEN, K.; LIEBEREI, R.. |
According with the studies realized the litter from peach palm (pupunha) contibutes with only 110 g/ha or 0,1% of total soil C to the C budget of the system. On the other hand it produces high quantities of root exudates. About 16.500 kg/ha C or 15% of total soil C respectively are released into the soil. Taking into account the C loss by microbial respiration and root respiration peach palm contributes with 10.700 kg/ha or 10% of total soil C respectively to the C budget of the system. Compared to C from root exudates the quantity of C from microbial biobass under peach palm is low. Only 45 kg/ha or 0,0004% of the total C originate from the microbial biomass. |
Tipo: Resumo em anais de congresso (ALICE) |
Palavras-chave: Floresta tropical umida; Conservacao do solo; Agrofloresta; Cultivo multiplo; Bactris gasipaes; Pupunha; Biomassa; Dioxido de carbono; Brasil; Amazonas; Manaus; Tropical rain forests; Soil conservation; Agroforestry; Multiple cropping; Biomass; Carbon dioxide. |
Ano: 2000 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/670050 |
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MARINO, W.; MARSCHNER, P.; GÖLLNITZ, I.; SCHROTH, G.; EMMERICH, S.; GASPAROTTO, L.; LEHMANN, J.; UGUEN, K.; LIEBEREI, R.. |
According with the studies realized the litter from peach palm (pupunha) contibutes with only 110 g/ha or 0,1% of total soil C to the C budget of the system. On the other hand it produces high quantities of root exudates. About 16.500 kg/ha C or 15% of total soil C respectively are released into the soil. Taking into account the C loss by microbial respiration and root respiration peach palm contributes with 10.700 kg/ha or 10% of total soil C respectively to the C budget of the system. Compared to C from root exudates the quantity of C from microbial biobass under peach palm is low. Only 45 kg/ha or 0,0004% of the total C originate from the microbial biomass. |
Tipo: Resumo em anais de congresso (ALICE) |
Palavras-chave: Floresta tropical úmida; Conservação do solo; Agrofloresta; Cultivo múltiplo; Bactris gasipaes; Pupunha; Biomassa; Dióxido de carbono; Brasil; Amazonas; Manaus. |
Ano: 2002 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/673236 |
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LIEBEREI, R.; GASPAROTTO, L.; PREISINGER, H.; SCHROTH, G.. |
The combination of soil science, forestry, agronomy and biology allowed an analytical comparison of various experimental mixed culture systems. From these studies, a descriptor system was developed which allows to understand the contribution of each plant species to nutrient cycling, water distribution, litter formation, overall biomass production and crop production. This knowledge allows to combine plants so that their properties interact to form a system, which minimizes mineral losses and which regulates air humidity and water distribution and thus leads to stable crop production. The general conclusion which can be drawn after eight years of polyculture study is: a) stable productions systems for samllholder families have bee developed; b) the systems... |
Tipo: Resumo em anais de congresso (ALICE) |
Palavras-chave: Agrofloresta; Brasil; Amazonas; Manaus; Sustainability; Conservação do Solo; Cultivo Multiplo; Desenvolvimento Sustentável; Floresta Tropical Úmida; Pequeno Produtor; Uso da Terra; Agroforestry; Land use; Multiple cropping; Small farms; Soil conservation; Tropical rain forests. |
Ano: 2000 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/670014 |
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MOTA, M. do S.; LEHMANN, J.; SCHROTH, G.. |
Studies on the effect of fertilization on soil acidity and pH dynamics in a mixed tree croping system with castanha-do-Para (Brazil nut), cupuacu, pupunha (peach palm), urucu (annatto) and pueraria.Fertilizer at four different levels (30%, 100%+P and 30%-N-lime, of the recommended fertilization, Embrapa Amazonia Ocidental, Manaus-AM, Brasil) was applied. Fertilization at a level of 30%-N-lime produced highest acidity compared to the other levels of fertilization. The effect of fertilization on soil acidity was restricted to a depth of 0 cm-5 cm. Pueraria and urucu presented the highest acidity at all. depths. The effec of soil pH was opposite to acidity, highest for cupuacu and pupunha and lowest for urucu at all depths. |
Tipo: Resumo em anais de congresso (ALICE) |
Palavras-chave: Floresta tropical umida; Conservacao do solo; Fertilidade do solo; Adubacao; Agrofloresta; Cultivo multiplo; Bactris gasipaes; Pupunha; Bertholletia excelsa; Castanha do Para; Bixa orellana; Urucu; Theobroma grandiflorum; Cupuacu; Pueraria; Cobertura do solo; Pueraria phaseoloides; Leguminosa; Tropical rain forests; Soil conservation; Soil fertily; Fertilizers application; Agroforestry; Multiple cropping; Cover plants; Legumes. |
Ano: 2000 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/670039 |
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MACEDO, J. L. V.; PEREIRA, M. M.; GASPAROTTO, L.; SCHROTH, G.; LIEBEREI, R.. |
Study on the development and production of several species (cupuacu, peach palm, rubber tree, cassava, annato, Brazil nut, pueraria) in agroforestry systems in the Embrapa Amazonia Ocidental Manaus-AM-Brasil). |
Tipo: Resumo em anais de congresso (ALICE) |
Palavras-chave: Floresta tropical umida; Agrofloresta; Cultivo multiplo; Bactris gasipaes; Pupunha; Bertholletia excelsa; Castanha do Para; Bixa orellana; Urucu; Carica papaya; Mamao; Hevea brasiliensis; Seringueira; Theobroma grandiflorum; Cupuacu; Pueraria phaseoloides; Producao; Adubacao; Micorriza vesicular arbuscular; Brasil; Amazonas; Manaus; Tropical rain forests; Agroforestry; Multiple cropping; Yields; Fertilizers application; Vesicular arbuscular mycorrhizae. |
Ano: 2000 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/669985 |
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MOTA, M. do S. S. da; LEHMANN, J.; SCHROTH, G.; SILVA JUNIOR, J. P. da.. |
Estudo da dinamica dos nutrientes P, K, Ca e Mg aplicados em sistema de policultivo (castanha-do-Para, cupuacu, pupunha, urucum, pueraria), conduzido sobre Latossolo Amarelo em Manaus-AM (Brasil). De acordo com os resultados, a acumulacao de P e K no solo com pupunha e urucu e Ca em pupunha, cupuacu e urucu indicou que o nivel de adubacao pode ser reduzido para essas especies. P nao apresentou alteracao durante a estacao chuvosa, apresentando maior concentracao em marco, e com maior diferenca, entre especies, em maio, para os primeiros 10 cm, e em janeiro, para as profundidades maiores. Castanha-do-Para e pupunha indicaram ter como fase de maior absorcao de P, os meses de marco a maio. K mostrou-se altamente sensivel a epoca chuvosa, apresentado maior... |
Tipo: Artigo em anais de congresso (ALICE) |
Palavras-chave: Floresta tropical umida; Uso da terra; Agrofloresta; Cultivo multiplo; Bactris gasipaes; Pupunha; Bertholletia excelsa; Castanha do Para; Bixa orellana; Urucu; Pueraria phaseoloides; Theobroma grandiflorum; Cupuacu; Adubacao; Fosforo; Potassio; Calcio; Magnesio; Brasil; Amazonas; Manaus; Tropical rain forests; Land use; Agroforestry; Multiple cropping; Fertilizers applications; Phosphate fertilizers; Potash fertilizers; Magnesium fertilizers; Calcium fertilizers. |
Ano: 2000 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/670604 |
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Registros recuperados: 61 | |
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