Monitoring of soil fertility of agricultural lands of LLC «Biette-Agro»

The purpose of the study is to monitor the soils of agricultural lands of LLC "Biette-Agro" based on the results of three rounds of the survey in 2010, 2015, 2020. The agrochemical survey was carried out on the arable lands of the farm "Biette-AGRO" IP V.V. Sivtsev according to the generally accepted methodological rules for monitoring and tracking soil fertility. In comparison with the VII round of the survey (2010), in the VIII round (2015) there was a sharp decrease in the humus content in soils; a very low humus content was noted at the site "Sylaat iline". The reaction of the medium in the surveyed areas varies from slightly alkaline to alkaline medium. The low content of exchangeable phosphorus was determined in the VII round at the sites "Baalky" 10 mg/kg and "Sylaat iline" 10 mg/kg; the high content of exchangeable phosphorus was observed in the VII round at the site "Ilin Bas" 187 mg/kg.