Pedosphere Research, vol. 3, 2023, no. 2: 101 – 114
Original Paper
THE CHANGES OF SELECTED SOIL CHEMICAL PARAMETERS AFTER CONVERSION OF SOIL USE
Božena Šoltysová, Martin Danilovič, Janka Danilovičová
National Agricultural and Food Centre – Plant Production Research Institute – Institute of Agroecology in Michalovce, Špitálska 1273/12, 071 01 Michalovce, Slovak Republic
Corresponding author: Ing. Božena Šoltysová, PhD., National Agricultural and Food Centre – Plant Production Research Institute – Institute of Agroecology in Michalovce,
Špitálska 1273/12, 071 01 Michalovce, Slovak Republic,
e-mail: bozena.soltysova@nppc.sk, ID ORCID: 0000–0002-0675–8037
Citation: Šoltysová, B., Danilovič, M., Danilovičová, J. (2023). The changes of selected soil chemical parameters after conversion of soil use. Pedosphere Research, vol. 3, 2023, no. 2, pp. 101–114. NPPC – VÚPOP 2023. ISSN 2729-8728.
https://doi.org/10.64122/j.pedosres.2023.03.07
Abstract
The changes in selected chemical parameters in the soil were observed in the Gleyic Fluvisols soil type. The field experiment was established with four energy crops (Arundo donax, Miscanthus x giganteus, Elymus elongatus, Sida hermaphrodita) in 2012. The energy crops were fertilized with phosphorus at a rate of 40 kg ha-1 and potassium at a rate of 60 kg ha-1 each year in spring. Nitrogen fertilization was not carried out. Soil samples were taken at the beginning of the experiment in the autumn of 2012 and every autumn (2013–2018) at a depth of 0–0.3 m. The development of selected soil parameters in the time series was evaluated by trend analysis. Land management conversion influenced changes in selected chemical parameters. The annual increase in soil carbon was 0.44 t ha-1 year-1 for the Arundo, 0.46 t ha-1 year-1 for the Elymus, and 0.43 t ha-1 year-1 for the Sida. The content of soil organic carbon was preserved during the cultivation of Miscanthus. Since the establishment of the experiments, an increase in total nitrogen (155.7 kg ha-1 year-1 N for the Arundo, 99.0 kg ha-1 year-1 N for the Miscanthus, 83.7 kg ha-1 year-1 N for the Elymus, and 50.0 kg ha-1 year-1 N for the Sida) was observed. A reduction in available phosphorus (with the exemption of Arundo) and potassium, as well as reduction in soil reaction in the soil of the monitored energy crops, were found. The linear trends detected in energy crops experiments indicate the increase of carbon sequestration after conversion from conventional crop to energy crop cultivation.
Keywords: energy crops, Gleyic Fluvisols, trend analysis, soil organic carbon, total nitrogen, available nutrients, soil reaction