INVESTIGADORES
MAESTRI Damian Modesto
artículos
Título:
Short-term impact of olive mill wastewater (OMWW) applications on the physico-chemical and microbiological soil properties of an olive grove in Argentina
Autor/es:
PIERANTOZZI, PIERLUIGI; TORRES, MARIELA; VERDENELLI, ROMINA; BASANTA, MARÍA; MAESTRI, DAMIÁN; MERILES, JOSÉ
Revista:
JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART B - PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES
Editorial:
TAYLOR & FRANCIS INC
Referencias:
Lugar: Londres; Año: 2013 vol. 48 p. 393 - 401
ISSN:
0360-1234
Resumen:
The purpose of this work was to
investigate the effects of olive oil mill wastewater (OMWW) spreading on some soil
biochemical parameters and olive grove production, in an organically managed
olive orchard. The experiment was carried
out with three different doses of OMWW (80, 160 and 500 m3 ha-1)
and a control (untreated soil). Three samplings were done 10, 30 and 90 days
after administration of the subproduct. OMWW
application differentially modified the biochemical properties of the soil
analyzed. Organic matter, organic carbon, total nitrogen and extractable
phosphorus soil contents grew proportionally with increasing doses. The values
of these parameters decreased gradually with time. Total microbial activity was
altered and OMWW 500 m3ha-1 treatment proved to be the most active when compared with
the other doses used. OMWW agricultural application also modified the structure
of soil microbial communities, particularly affecting Gram positive and
negative bacteria while fungal biomass did not show consistent changes.
Although there was a salinity increase in the treated soil, especially with the
highest dose, the productive parameters analyzed (fruit and oil tree-1)
were not affected. Considering the results obtained, we consider that low dose OMWW
soil treatment may be an alternative farming practice in semiarid regions.