Data/hora: 06/06/2024 07:26:38

Biblioteca(s): | Epagri-Sede.
Tipo da produção científica: | Resumo em Anais de Congresso
Data corrente: | 18/10/2018
Data da última atualização: | 18/10/2018
Autoria: | ZAMBONIM, F. M.; LELES, P. S.; MILLER, P. R. M.; VEIGA, M.
Título: | Effect of the agrossilviculture of Euterpe edulis Martius on physical and chemical soil attributes.
Ano de publicação: | 2018
Fonte/Imprenta: | In: WORLD CONGRESS OF SOIL SCIENCE, 21., 2018, Rio de Janeiro. Abstracts... Rio de Janeiro: Sociedade Brasileira de Ciências do Solo, 2018.
Idioma: | Inglês

Conteúdo:

The agroforestry systems (AFSs) are recognized as sustainable production systems and they contribute to the
natural resources conservation. The soil quality monitoring is an important tool for sustainability assessment of
this production system. The aim of the current study is to verify the effects of the Euterpe Edulis Martius AFSs,
performed by farmers from the northern coast of Santa Catarina, as for the physic and chemical soil properties in
comparison with the soil properties under other forest uses. Five E. Edulis AFS areas (TRAT 1) have been
selected, all located next to areas with other forest uses (TRAT 2). The experiment was arranged in full blocks
with five replications. Three different depths of layers were used as physical and chemical soil factors indicators
(0?5; 5?10 and 10?20 cm), pH rates; organic material levels, phosphorus, potassium, calcium; magnesium,
aluminum; the CTC pH 7,0 index, the base saturation CTC pH 7,0 index, and CTC pH soil saturation by aluminum index,
the bulk density (BD), the mean weight-diameter of aggregates obtained through dry sieving (DMPs), the mean
weight- diameter of aggregates obtained through water sieving (DMPu) - and aggregate stability index (ASI). The
E. edulis AFSs did not show different effects on most soil chemical properties indicators when compared to other
forest cover composed primarily of native species of the Atlantic Forest. This result shows that the AFSs did not
cause improvements in soil chemical properties and that some possible increases in nutrient exportation of
agroforestry systems for bigger harvests may exhaust the natural reserves of soil nutrients. In order to provide
increase and chemical fertility maintenance of soils under AFSs, a continuous and careful management of these
fertilization systems is recommended. Soils under E. edulis AFSs showed a larger soil aggregate stability when
compared to soils under other forest uses. The cultivation of E. edulis when intercropped with tree species
effectively promotes the improvement of soil aggregate stability due to the characteristics of its root system.

Palavras-Chave: | açaí; agroforestry systems; Juçara palm.
Categoria do assunto: | K Ciência Florestal e Produtos de Origem Vegetal
URL: | http://intranetdoc.epagri.sc.gov.br/producao_tecnico_cientifica/DOC_41455.pdf
Registro original: | Epagri-Sede (Epagri-Sede)
Exemplares: | Epagri-Sede - (102834-1) - UPC - PL - DD -  -  -  - DIS