Atributos microbiológicos e químicos do solo sob diferentes sistemas de manejo
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Data
2017-02-17
Autores
Oliosi, Gleison
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Editor
Universidade Federal do Espírito Santo
Resumo
The demand for sustainable systems of production has increased considerably in
recent years, so we are looking for cropping systems that can combine agricultural
production with the maintenance of soil quality, ensuring food security and
productivity of our soils for future generations. Thus, the objective of this work was to
evaluate the changes in microbiological and chemical attributes of soil under different
cropping systems, at different seasons. The experiment was conducted in the
municipality of Jaguaré-ES, where was evaluated five management systems, 01-
Conilon coffee in monoculture, 02- Conilon coffee intercropped with rubber tree, 03-
rubber tree in monoculture, 04- pasture of Brachiaria brizantha, and 05- fragment of
Atlantic forest. The microbiological soil analyzes were carried out in winter and
summer, and the chemical analysis only in the summer, both on the depth of 0-10
and 10-20 cm. The data were submitted to multivariate analysis and descriptive
analysis of the variables, with average and average standard error. The
microbiological attributes of the soil did not present an expressive change in the
seasons evaluated, evidencing that the frequent occurrence of higher values in the
summer is associated to the high precipitations coupled with the high temperatures.
The adoption of management systems with coffee and rubber trees in intercropping
or monoculture, and pasture of Brachiaria brizantha, under the conditions studied,
presented little alteration in the microbiological attributes of the soil, showing up as
viable alternatives to promote soil sustainability, combined with agricultural
production. The chemical attributes of the soil vary independently of the
microbiological attributes in the evaluated management systems, being more
influenced by the fertilization and corrections of the soil, so that not always the area
with better chemical attributes will present better microbiological attributes.
Descrição
Palavras-chave
Coffea canephora , Hevea brasiliensis , Agroforestry system , Brachiaria brizantha , Soil quality , Sistema agroflorestal , Qualidade do solo , Sustainability , Café conilon
Citação
OLIOSI, Gleison. Atributos microbiológicos e químicos do solo sob diferentes sistemas de manejo. 2017. 64 f. Dissertação (Mestrado em Agricultura Tropical) - Programa de Pós-Graduação em Agricultura Tropical, Universidade Federal do Espírito Santo, São Mateus, 2017.