Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados Infoteca-e (10) Autor LEHMANN, J. (10) SILVA JUNIOR, J. P. da (3) ZECH, W. (3) CRAVO, M. D. S. (2) MARQUES, J. (2) TEIXEIRA, W. G. (2) BAUCH, J. (1) CRAVO, M. (1) CRAVO, M. da S. (1) DINISCH, O. (1) FERNANDES, T. (1) FERNANDES, T. P. (1) GARCIA, M. V. B. (1) GEBAUER, G. (1) HAHAGARTH, W. (1) HOFFMANN, K. (1) KAISER, K. (1) MENYAILO, O. (1) RENCK, A. (1) SEITZ, D. (1) Mais... Palavra-chave Amazonas (9) Brasil (9) Floresta Tropical Úmida (9) Manaus (8) Tropical rain forests (6) Agrofloresta (5) Agroforestry (5) Pueraria Phaseoloides (4) Cultivo Multiplo (3) Fauna Edáfica (3) Multiple cropping (3) Soil fauna (3) Bactris Gasipaes (2) Cobertura do Solo (2) Cupuaçu (2) Fixação de Nitrogênio (2) Forest litter (2) Fruit trees (2) Nitrogen fixation (2) Pupunha (2) Mais... Tipo do documento Parte de livro (10) Ano 1999 (5) 1998 (4) 1997 (1) País Brazil (10) Idioma Inglês (10)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 10 Primeira ... 1 ... Última Cover crop and fertilization effects on nutrient dynamics in fruit tree cropping in the central Amazon. Infoteca-e TRUJILLO, L.; LEHMANN, J.; CRAVO, M. D. S.. Study on the soil and plant N dynamics as affected by fertilization and intercropping with legume (Paullinia cupana x Pueraria phaseoloides), in Manaus-AM (Brasil). Tipo: Parte de livro Palavras-chave: Planta leguminosa; Consorciacao; Brasil; Amazonas; Manaus; Cover plants; Árvore Frutífera; Cobertura do Solo; Floresta Tropical Úmida; Guaraná; Paullinia Cupana; Pueraria Phaseoloides; Fruit trees; Intercropping; Tropical rain forests. Ano: 1999 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/669434 Fast soil solution nutrient and water dynamics in top- and subsoil. Infoteca-e RENCK, A.; LEHMANN, J.; KAISER, K.; MARQUES, J.; TEIXEIRA, W. G.. Study for find out the short-term dynamics of applied fertilizer. In a soil pit a data logger system connected to tensiometers and TDR was installed up to a depth of 3.5m under pueraria in an agroforestry system (cupuacu, peach palm, Brazil nut, urucum). After a rainfall event, the soil water suction at 0.1m depth increased immediately, and fast responses were seen even up to a depth of 0.9m. This result may indicate that nutrients may be leached very fast even in these soil with high clay contents. The N concentrations in the soil solution relevantly increased at 0.1m depth during the same time period, as shown for peach palm. First, the ammonium concentrations increased, but nitrate contents followed rapidly indicanting a fast nitrification in the... Tipo: Parte de livro Palavras-chave: Brasil; Amazonas; Manaus; Tropical rain forest; Floresta Tropical Úmida; Relação Solo-Água; Soil water. Ano: 1998 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/668344 Litter quality effects on decomposition by diplopodes and 15N recovery of central Amazonian agroforestry tree species. Infoteca-e SEITZ, D.; LEHMANN, J.; GARCIA, M. V. B.; HAHAGARTH, W.; HOFFMANN, K.; ZECH, W.. Study to investigate the role of single soil fauna species in controlled lboratory incubation to describe litter decomposition in tropical agroforestry systems, in Manaus-AM (Brasil). Tipo: Parte de livro Palavras-chave: Agrofloresta; Brasil; Amazonas; Manaus; Tropical rain forest; Fauna Edáfica; Floresta Tropical Úmida; Serapilheira; Agroforestry; Forest litter; Soil fauna. Ano: 1999 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/669433 Microbial biomass as affect by litter quality and fertilization Xanthic Ferrasol. Infoteca-e SILVA JUNIOR, J. P. da; SILVA, R.; FERNANDES, T.; LEHMANN, J.. Stydy at a laboratory to investigate the effects of litter from different species (Theobroma grandiflorum - cupuacu, Bactris gasipaes - pupunha, Bertholletia excelsa - castanha-do-Para, Bixa orellana - urucum, Pueraria phaseoloides - pueraria) and fertilization with N and P on C, N and P in microbial biomass of the topsoil (0cm-5cm) with high organic C contents and of an underlying horizon (10cm-15cm) with low organic C contents of a Xanthic Ferrasols, in Manaus-AM (Brasil). Tipo: Parte de livro Palavras-chave: Agrofloresta; Urucu; Brasil; Amazonas; Manaus; Fertilizers application; Adubação; Árvore Frutífera; Bactris Gasipaes; Bertholletia Excelsa; Bixa Orellana; Castanha do Para; Cultivo Multiplo; Cupuaçu; Fauna Edáfica; Floresta Tropical Úmida; Pueraria Phaseoloides; Pupunha; Serapilheira; Theobroma Grandiflorum; Agroforestry; Forest litter; Fruit trees; Multiple cropping; Soil fauna; Tropical rain forests. Ano: 1999 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/669437 Nitrogen use of a mixed tree crop plantation with a leguminous cover crop. Infoteca-e LEHMANN, J.; SILVA JUNIOR, J. P. da; GEBAUER, G.; SILVA, L. F. da. Study on two associated frut tree crops take up their N in comparison to a leguminous cover crop in an agroforestry system. Preliminar results showed the pueraria had the highest foliar N content followed by pupunha; cupuacu having less than the other two. One year after application, cupuacu took up more of the applied N in comparison to the total N uptake than pueraria and pupunha as seen from the high &15N values. The amount of 15N taken up in relation to dry matter equaled between the three species, since pueraria had a lot higher N contents. The other sampling dates showed the same tendency. Tipo: Parte de livro Palavras-chave: Agrofloresta; Brasil; Amazonas; Manaus; Tropical leguminous; Bactris Gasipaes; Cobertura do Solo; Conservação do Solo; Cultivo Multiplo; Cupuaçu; Fixação de Nitrogênio; Floresta Tropical Úmida; Leguminosa Tropical; Pueraria Phaseoloides; Pupunha; Theobroma Grandiflorum; Pueraria; Agroforestry; Cover crops; Mixed cropping; Multiple cropping; Nitrogen fixation; Soil conservation; Tropical rain forests. Ano: 1998 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/668343 Single tree effects on soil organic matter. Infoteca-e LEHMANN, J.; CRAVO, M.; ZECH, W.. Tipo: Parte de livro Palavras-chave: Matéria Orgânica. Ano: 1997 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1093937 Single tree-effects on denitrification and soil microbial biomass in agroforestry systems and natural forests of the Amazon region. Infoteca-e MENYAILO, O.; LEHMANN, J.; DINISCH, O.; CRAVO, M. D. S.; BAUCH, J.; ZECH, W.. The aim of this study was to find the effect of tree species (Theobroma grandiflorum - cupuacu, Bixa orellana - urucum, Vismia spp, Carapa guianensis - andiroba, Ceiba pentandra - sumauma) used in agroforestry system in Amazonian region and natural forests on the total biomass of heterotrophic microorganisms (BH), in Manaus-AM (Brasil). Tipo: Parte de livro Palavras-chave: Agrofloresta; Brasil; Amazonas; Manaus; Cultivo Multiplo; Fauna Edáfica; Floresta Tropical Úmida; Agroforestry; Multiple cropping; Soil fauna; Tropical rain forests. Ano: 1999 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/669432 Single-tree effects on soil organic matter properties of a xanthic Ferralsol in the central Amazon. Infoteca-e LEHMANN, J.; CRAVO, M. da S.. Studies on: a) identification soil pools which are sensitive to land-use changes on the terra firme; b) evaluation of the potential of different trees to increase soil organic matter (SOM) contents; and c) elucidation of the the mechanisms of SOM replenishment in Ferralsols of the central Amazon. Conclusions: using aggregate fractionation together with the chemical characterisation of SOM, the processes of incorporation of plant litter into stable SOM could be successfully studied in the strongly aggregated Ferralsol. Thus, it could be shown that aggregation promoted the stabilisation of SOM, but SOM did not incrase aggregate stability. The particulate organic matter was an important and valid indicator of the effects of different organic inputs on SOM... Tipo: Parte de livro Palavras-chave: Agrofloresta; Brasil; Amazonas; Manaus; Fertilidade do Solo; Floresta Tropical Úmida; Uso da Terra; Agroforestry; Land use; Soil fertility; Tropical rain forests. Ano: 1998 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/668338 Soil nutrient amendment with leaves of varying quality. Infoteca-e FERNANDES, T. P.; SILVA, R. B.; SILVA JUNIOR, J. P. da; LEHMANN, J.. Study on the impact of nitrogen and phosphorus fertilization combined with litter amendment on the microbial biomass ofa xanthic Ferralso. (0cm-5cm and 10cm-20cm). First peliminary results after 18 days of incubation showed that soil amended with P tended to have higher microbial C than soils fertilized with N or the control. This result indicates that nitrogen is probably not limiting microbial biomass growth the most , but rather P. Tipo: Parte de livro Palavras-chave: Folhas; Brasil; Amazonas; Fixação de Nitrogênio; Floresta Tropical Úmida; Leaves; Nitrogen fixation; Tropical rain forests. Ano: 1998 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/668345 Soil water availability as affected by the cover crop Pueraria phaseoloides in the central Amazon. Infoteca-e MARQUES, J.; TEIXEIRA, W. G.; LEHMANN, J.. Study on the effects of the cover crop pueraria on soil water cycling, in Manaus-AM (Brasil). Partial results showed that under the experimental conditions, there was a higher soil water availability under the cover crop that in bare soil due to reduced evaporation from the soil surface. Under these conditions, a cover crop may play an important role in water conservation and hence crop production on Xanthic Ferralsols of the central Amazon. Tipo: Parte de livro Palavras-chave: Brasil; Amazonas; Manaus; Floresta Tropical Úmida; Pueraria Phaseoloides; Relação Solo-Água; Umidade do Solo; Soil water. Ano: 1999 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/669431 Registros recuperados: 10 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco