Yu. A. Klipakova, I. A. Korotkaya, Yu. V. Chebanova, E. M. Denisova
Melitopol State University, Melitopol, Russia
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Volume 25 No. 4
Date of paper submission: 06.11.2024, date of review: 11.02.2025, date of acceptance: 14.02.2025.
Published: 04/30/2025
Abstract. The purpose of the study is to evaluate agrophysical and agrochemical parameters of southern chernozem in stationary crop rotation and fallow state in the conditions of the steppe zone of the north-western Priazovye (Melitopol district of Zaporozhye region), as well as to establish the nature of changes that occurred in the soil depending on the farming and duration of land use. Methods. According to generally accepted methods, samples were selected in the studied fields in horizons 0–30 cm and 30–60 cm to determine the granulometric composition, organic matter content, nitrification capacity, and dynamics of the main nutrition elements. Scientific novelty. For the first time, an agrophysical and agrochemical evaluation of southern chernozem, which was in fallow condition (15 years), was carried out, and its comparative analysis was given in relation to pure steam in the conditions of one farm. Results. On the basis of the obtained data it was established that the studied soils are strongly degraded as a result of agricultural activity, which is confirmed by the complete absence of agronomically valuable aggregates. The content of organic matter on clean fallow and fallow lands on horizons 0–30 and 30–60 cm is 1.57– 2.50 %, which is the low indicator. The higher nitrification capacity was observed on clean fallow – 47.3 mg/kg. High provision of mobile phosphorus was noted for fallow lands (horizon 0–30 cm – 42 mg/kg P2 O5 , 30–60 cm – 31 mg/kg P2 O5 ). At the same time, on the clean fallow for layers 30–60 cm, the decrease in 3.5–3.7 times of mobile phosphorus was noted, where its content was 9 mg/kg relative to other studied horizons. Exchangeable potassium in clean fallow and fallow soils in the 0–30 cm layer is characterised as elevated (305–349 mg/kg), with its subsequent decrease in the horizon by 18 % and 30 %, respectively, compared to the root-inhabited layer.
Keywords: agrochemical characteristics of soil, southern chernozem, fallow lands, granulometric composition, organic matter, forms of nutrients
Acknowledgements. The research work was carried out within the framework of the Youth Scientific Laboratory “Rational use of bioresources and increasing the sustainability of agrocenoses” in accordance with the theme and plan for 2024–2027 (FRRS-2024-0004).
For citation: Klipakova Yu. A., Korotkaya I. A., Chebanova Yu. V., Denisova E. M. Changes in the properties of southern chernozem in the process of agricultural use. Agrarian Bulletin of the Urals. 2025; 25 (04): 530‒538. https://doi.org/10.32417/1997-4868-2025-25-04-530-538 (In Russ.)
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