Data/hora: 04/06/2024 19:22:31

Biblioteca(s): | Embrapa Unidades Centrais.
Data corrente: | 10/06/1999
Data da última atualização: | 18/06/2019
Autoria: | PAVAN, M. A.; CHAVES, J. C. D.; SIQUEIRA, R.; ANDROCIOLI FILHO, A.; COLOZZI FILHO, A.; BALOTA, E. L.
Afiliação: | MARCOS ANTONIO PAVAN, IAPAR; JÚLIO CÉSAR DIAS CHAVES, IAPAR; RUBENS SIQUEIRA, IAPAR; ARMANDO ANDROCIOLI FILHO, IAPAR; ARNALDO COLOZZI FILHO, IAPAR; ELCIO LIBORIO BALOTA, IAPAR.
Título: | High coffee population to improve fertility of an oxisol.
Ano de publicação: | 1999
Fonte/Imprenta: | Pesquisa Agropecuária Brasileira, Brasília, DF, v. 34, n. 3, p. 459-65, mar. 1999
Idioma: | Inglês
Notas: | Título em português: Densidade populacional de cafeeiros para melhorar a fertilidade de um Latossolo.
Conteúdo: | The objective of this work was to evaluate the effect of coffee (Coffea arabica L.) population densities on the chemical and microbiological properties of an Oxisol. The work was carried out on soil samples of 0-20 cm depth originated from an experimental site which had been used for coffee tree spacing studies during 15 years, in Parana State, Brazil. Eight coffee tree populations were evaluated: 7143, 3571, 2381, 1786, 1429, 1190, 1020, and 893 trees/ha. Increasing plant population increased soil pH, exchangeable Ca, Mg, K, extractable P, organic carbon, moisture content and coffee root colonization by vesicular arbuscular mycorrhizal fungi, and decreased exchangeable A1 and microbial biomass. Such results were attributed to better erosion control, improved plant residue management and nutrient cycling, and decreased leaching losses. Increasing coffee tree population per unit of area has shown to be an important reclamation recuperation strategy for improving fertility of the acid soils in Parana, Brazil.
Palavras-Chave: | Acid soil; Solos acidos; Tree spacing.
Thesagro: | Coffea Arábica; Espaçamento.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/AI-SEDE/7613/1/PAB97016.pdf
Registro original: | Embrapa Unidades Centrais (AI-SEDE)
Exemplares: | AI-SEDE - (7613-1) - UPE - AP - PP - 630.72081 - P474 -  - DIS