Data/hora: 19/06/2024 13:40:37

Biblioteca(s): | Embrapa Amazônia Ocidental.
Data corrente: | 26/07/1999
Data da última atualização: | 11/02/2020
Autoria: | RENCK, A.; LEHMANN, J.; KAISER, K.; MARQUES, J.; TEIXEIRA, W. G.
Afiliação: | University of Bayreuth; Embrapa Amazonia Ocidental.; WENCESLAU GERALDES TEIXEIRA, CPAA.
Título: | Fast soil solution nutrient and water dynamics in top- and subsoil.
Ano de publicação: | 1998
Fonte/Imprenta: | In: SHIFT PROJECT ENV 45/2. Water and nutrient fluxes as indicators for the stability of different land use systems on the terra firme near Manaus. Manaus: EMBRAPA-CPAA/BMBF, 1998.
Páginas: | p. 54-57.
Idioma: | Inglês
Conteúdo: | 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 studied soils.
Palavras-Chave: | Amazonas; Brasil; Manaus; Tropical rain forest.
Thesagro: | Floresta Tropical Úmida; Relação Solo-Água.
Thesaurus Nal: | soil water.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/210595/1/Water-and-nutrient-p54.pdf
Registro original: | Embrapa Amazônia Ocidental (CPAA)
Exemplares: | CPAA - (4181-1) - UMT - PL - PP - 634.99 - S555w -  - DIS