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| Registros recuperados: 10 | |
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| 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: Capítulo em livro técnico (INFOTECA-E) |
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 |
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| 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: Capítulo em livro técnico (INFOTECA-E) |
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 |
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| 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: Capítulo em livro técnico (INFOTECA-E) |
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 |
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| Registros recuperados: 10 | |
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