Chemical Composition of Sod-Strongly-Podzolic Light-Loamy Soil During Long-Term Agricultural Use

Abstract

Mass spectral method with inductively coupled plasma (MS) and atomic emission method with inductively coupled plasma (AES) at ASIC VNIIMS named after N.M. Fedorovskiy 53 chemical elements and 8 oxides in sod-strongly-podzolic light loamy soil were determined. Soil samples were taken from horizons А1 (deposit) and Ап (arable land) during long-term agricultural use in SKhPK named after Michurin of Vavozhskiy district of the Udmurt Republic. Relative to horizon А1 (deposit), in the plow layer there is a higher content of zinc, cadmium and lead - elements of the toxicity class 1, copper - element of the toxicity class 2, barium, strontium and tungsten - elements of the toxicity class 3. In accordance with the requirements of the hygienic standard GN 2.1.7.2041-06, only the arsenic content exceeded maximum permissible concentration. Among the oxides in the arable layer Ап, an increased content of magnesium and iron oxides was noted, compared with their concentration in the А1 horizon (deposit). In the course of the study, it was found that the studied sod-strongly podzolic light loamy soil with long-term agricultural use is characterized by an increase in the content of zinc in the arable layer by 16.8, lead by 0.4, cadmium by 0.11 μg/g, barium by 33.1, strontium by 3.1 and tungsten by 0.11 μg/g relative to their concentration in the А1 horizon (deposit). According to the content in the arable layer of heavy metals sod-strongly podzolic light loamy soil SKhPK named after Michurin of Vavozhskiy district of the Udmurt Republic can be classified as soil with a low level of pollution. According to the total pollution indicator, the soil corresponds to the category of permissible pollution level.