Nitrificación completa en columnas de suelo perfundidas con nitrito. / [Complete nitrification in soil columns perfused with nitrite]

ABSTRACT

Four columns of the same soil were put under the continuous flow of a NaNO2 solution [50 ppm N], so as to follow the evolution of nitrification. The soil, the columns as well as the solution continuous flow regulating system, were prepared as in the previous experiments. The columns, with the exception of No1 (control), contained also the following substances No2 and 4 2