| bacteriological quality of crops irrigated with wastewater in the xochimilco plots, mexico city, mexico. | xochimilco county plots (mexico city), one of the most fertile agricultural areas in the valley of mexico, produce a large portion of the fresh vegetables consumed in the city. these plots are generally irrigated with domestic wastewater, and for this reason, it was deemed important to examine and evaluate the bacteriological quality of the water, soil, and vegetables from these plots that are harvested and marketed. the soils were also examined for the classical parameters such as nitrates, amm ... | 1984 | 6742825 |