QUANTITATIVE ASSESSMENT METHODS OF FERTILITY FOR THE PURPOSE OF PRECISE RECLAMATION REGULATION

Abstract

The article offers a method of bioindication of the state of soil biota as an indicator of soil fertility. Earthworms are accepted as an indicator of biota activity. The «Health» of soil is characterized by taking into account the number and biomass of earthworms. To control the activity of the soil biota, quantitative regularities of requirements of earthworms (Eisenia fetida) to water, heat and acid regimes are established. There was found an empirical dependence of the relative yield capacity of white mustard from the number (mass) of indicator organisms according to field experience. A quantitative relationship was obtained between the crop yield and the integral biomass of earthworms at each point of the field.The bioindication capabilities of earthworms as «meters» of soil fertility are shown. A large data variation indicates the need to assign differentiated management for heterogeneous groups of points under consideration when planning land reclamation activities. Continuous functions of earthworm requirements to the humidity, temperature and acidity of the habitat are obtained.