Title Effects of using wastewater as nutrient sources on soil chemical properties in peri-urban agricultural systems
Reusing domestic wastewater for irrigation and applying biosolids as a
fertiliser in crop production are common practices in peri-urban areas
of Vietnam. This study investigates the effects of using domestic
wastewater in field experiments on Fluvisols soils in peri-urban areas
of Hanoi and Nam Dinh cities. We compared long-term (30-50 years)
wastewater-irrigated rice-dominated farming systems. Using wastewater
for irrigation significantly affected pH, electrical conductivity (EC),
exchangeable K and Na and reverse aqua regia-digestible (Rev Aq Reg)
copper (Cu), lead (Pb) and zinc (Zn) in the investigated areas compared
with control plots irrigated using river water. There were no
significant effects of wastewater irrigation on the NH4NO3-extractable
fraction of cadmium (Cd) and other trace metals, but the
EDTA-extractable fraction of Cu, Pb and Zn was significantly increased
http://repository.vnu.edu.vn/handle/11126/5012
http://repository.vnu.edu.vn/handle/11126/5012
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