SOIL RESPIRATION IN BANANA PLANTATIONS FERTIGATED WITH TREATED SANITARY WASTE WATER
Palavras-chave:
microbial activity, effluent, soil microorganisms, Musa spp.Resumo
This study aimed at evaluating the CO2 evolution in a Red Eutrophic Latosol (Eutrudox) fertigated with treated sanitary waste water under “Prata-Anã” banana cultivation. Soil samples with deformed structure were collected from 0-20 and 20-40 cm soil profile depths. The experimental design was random blocks arranged in split-plots with four replications. The main plot factors were different treated sanitary waste water doses applied as 130% and 200% compared with the maximum annual soil application limit (150 kg sodium ha-1) and a control treatment (clean water + mineral fertilization). Soil respiration was evaluated on the 7th, 14th, 21st, and 28th days. Higher CO2 emission was present in the waste water treatments.