| Registro completo |
| Provedor de dados: |
PAB
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| País: |
Brazil
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| Título: |
High coffee population density to improve fertility of an oxisol
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| Autores: |
Pavan,Marcos Antonio
Chaves,Júlio César Dias
Siqueira,Rubens
Androcioli Filho,Armando
Colozzi Filho,Arnaldo
Balota,Elcio Liborio
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| Data: |
1999-03-01
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| Ano: |
1999
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| Palavras-chave: |
Coffea arabica
Acid soil
Tree spacing
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| Resumo: |
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 Paraná 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 Al 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 Paraná, Brazil.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X1999000300018
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| Editor: |
Embrapa Secretaria de Pesquisa e Desenvolvimento
Pesquisa Agropecuária Brasileira
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| Relação: |
10.1590/S0100-204X1999000300018
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| Formato: |
text/html
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| Fonte: |
Pesquisa Agropecuária Brasileira v.34 n.3 1999
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| Direitos: |
info:eu-repo/semantics/openAccess
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