Data/hora: 11/06/2024 06:31:21

Biblioteca(s): | Embrapa Amazônia Ocidental.
Data corrente: | 21/11/2000
Data da última atualização: | 28/01/2019
Autoria: | SILVA JUNIOR, J. P. da; LEHMANN, J.; LOZADA, N.
Afiliação: | JOSE PEREIRA DA SILVA JUNIOR, CPAA.
Título: | Pueraria phaseoloides as a cover crop in agroforestry systems in the humid tropics: growth, nutrition and biological N2 fixation.
Ano de publicação: | 2000
Fonte/Imprenta: | In: INTERNATIONAL CONGRESS ON NITROGEN FIXATION, 12., 1999, Foz do Iguaçu. Nitrogen fixation: from molecules to crop productivity - proceedings. Dordrecht: Kluwer Academic Press, 2000.
Páginas: | p. 563.
Idioma: | Inglês
Conteúdo: | Analyse of the biomassa production and nutrition of pueraria as a cover crop grown in three different agroforestry systems (1- cupuacu, pupunha e seringueira; 2- cupuacu, pupunha, castanha-do-Para, urucu; and 3- cupuacu, seringueira, coco, citros) at two levels of fertilisation, and its potential to contribute to the N stocks of the cropping system by biological N2 fixation (NBF), in a Xanthic Farreasol in Manaus-AM (Brasil). With the exception of K, the nutrients stocks in pueraria litterwere more than twice as high as the nutrients applied by fertilisation. consequently, nutrient turnover of pueraria was an important process in the nutrient cycling of the fruit tree production system. The N in pueraria derived from biological N2 fixation estimated by 15N enrichment reached values from 9% to 45% and was higher throughout the wet than the dry season. Thus, 32-158 Kg N ha-1 of the biomass N were derived from atmospheric N2 exceeding the amounts of N added by fertilisation. The larger nutrient uptake and return through litter indicated a rapid nutrient cycling and plant-topsoil interface, thus reducing leaching and keeping nutrients available.
Palavras-Chave: | Agrofloresta; Amazonas; Bertolletia excelsa; Brasil; Castranha do Para; Cover plants; Manaus; Tropical rain forest; Urucu.
Thesagro: | Bactris Gasipaes; Bixa Orellana; Citrus Sinensis; Cobertura do Solo; Coco; Cocos Nucifera; Conservação do Solo; Cultivo Multiplo; Cupuaçu; Espécie; Fixação de Nitrogênio; Floresta Tropical Úmida; Hevea; Laranja; Leguminosa; Pueraria Phaseoloides; Pupunha; Seringueira; Sistema de Cultivo; Theobroma Grandiflorum.
Thesaurus Nal: | agroforestry; cropping systems; legumes; multiple cropping; soil conservation.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/191142/1/PUERARIA-PHASEOLOIDES-AS-A-COVER-CROP-IN-AGROFORESTRY-SYSTEMS-IN-THE.pdf
Registro original: | Embrapa Amazônia Ocidental (CPAA)
Exemplares: | CPAA - (5567-1) - UPC - RA - PP - 631.847 - I61n -  - DIS