Effects on macronutrient contents in soil-plant irrigated with different quality waters and wastewaters
Por:
de Velasquez, MTO, Pedroza, KV, Yanez-Noguez, I, Monje-Ramirez, I, Campos-Reales-Pineda, AE
Publicada:
1 ene 2014
Resumen:
The goals of this research were focused on investigating the effects of
irrigation with untreated wastewater, ozone-enhanced primary treated
wastewaters (O3EPTW), tap water and tap water + fertilizer on the
macronutrient content in soil and plant tissues. The effect on plant
development was evaluated by growing Lactuca sativa in soils irrigated
with these different quality waters and wastewaters, and by determining
the macronutrients content in water, soil and plants. In this study, the
soils irrigated with O3EPTW showed increased organic matter
concentrations, which is advantageous for crop cultivation. The electric
conductivity for the O3EPTW irrigated soils remained below those of the
tap water + fertilizer and untreated wastewater. The soil irrigated with
tap water + fertilizer showed a marked decrease in pH, and its long-term
use could lead to soil acidification. Macronutrient levels in plant
tissues (N, K and Mg contents) were similar for all irrigation waters,
except for tap water which always remained lower than the others. It was
concluded that the use of O3EPTW may become a good irrigation
alternative that can be employed without the health risks associated
with the use of untreated wastewaters, also reducing the adverse effects
on soil's salinity or acidification.
Filiaciones:
de Velasquez, MTO:
Univ Nacl Autonoma Mexico, Inst Ingn, Mexico City 04510, DF, Mexico
Pedroza, KV:
Univ Nacl Autonoma Mexico, Inst Ingn, Mexico City 04510, DF, Mexico
Yanez-Noguez, I:
Univ Nacl Autonoma Mexico, Inst Ingn, Mexico City 04510, DF, Mexico
Monje-Ramirez, I:
Univ Nacl Autonoma Mexico, Inst Ingn, Mexico City 04510, DF, Mexico
Campos-Reales-Pineda, AE:
Univ Nacl Autonoma Mexico, Inst Ingn, Mexico City 04510, DF, Mexico
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