Dynamics of the structural state and enzymatic activity of calcic chernozem under the influence of biologically active drugs

Marina Dubinina,Olga Naimi,Olga Bezuglova,Vladimir Lychman,Elena Polienko,D Rudoy,A Olshevskaya,N Ugrekhelidze

doi:10.1051/e3sconf/202127305004

Abstract

The results of many years of research on the individual and complex effects of biologically active substances on the structural state and enzymatic activity calcic chernozem – humic preparation Lignohumate and microbiological fertilizer “Baikal-EM” – are presented. It was found that biologically active substances contribute to an increase in enzymatic activity, humus content and an improvement in the state of the soil structure. When both preparations are applied directly to the soil, the maximum effect and statistical reliability of this effect on the structural characteristics of the soil are shown even under extremely unfavorable weather conditions. At the same time, the structural coefficient during the study period increases from 1.5 to 2-2.7 in comparison with the background variant, which makes it possible to assess the structural state of the soils as “excellent”. In general, the activity of enzymes during the research in the cultivation of winter crops tended to stable growth. The cessation of the application of liquid complex fertilizers and the transition to a spring crop led to a decrease in the activity of enzymes and their return to background values.

Highlights

Modern methods of maintaining and increasing the pace of agricultural production largely depend on the use of synthetic chemicals, complex equipment and aggregates, which often leads to a deterioration in the quality of the environment and the manifestation of the effect of degradation of productive soils
The vital activity of most soil microorganisms is confined to soil aggregates that retain its water resistance and stability of its structure due to
The calculation of the Student's criterion showed that the change in the humus content is reliable only in option 4 with the joint introduction of two biologically active substances and in some selections in options 3 and 5, where the individual application of humic fertilizer and microbiological preparation was carried out directly into the soil

Summary

Introduction

Modern methods of maintaining and increasing the pace of agricultural production largely depend on the use of synthetic chemicals, complex equipment and aggregates, which often leads to a deterioration in the quality of the environment and the manifestation of the effect of degradation of productive soils. To overcome these negative consequences, new technologies and preparations are being introduced and adapted to preserve and restore soil fertility, as the main component of the food security program. Despite the ambiguity of the results of the use of biostimulants, the production, range and market for its use is increasing annually, which, given the environmental friendliness of these drugs, allows us to consider them a universal tool for solving many problems of agro-industrial production [14, 15]

Materials and research methods

Results and discussion

Conclusion