INFLUENCE OF ASH CONTENT OF MILLED PEAT BLANK AND NEUTRALIZING COMPONENTS ON ITS ELECTRICAL CONDUCTIVITY

UDC 630*232.329.9

Nosnikov Vadim Valer’evich − PhD (Agriculture), Associate Professor, Assistant Professor, the Department of Forest Plantations and Soil Science. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: nosnikov@belstu.by

 Sevruk Tatyana Dmitrievna – Master’s degree student, the Department of Forest Plantations and Soil Science. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: tanjasevruk292@gmail.com

DOI: https://doi.org/ 10.52065/2519-402X-2024-276-7.

Key words: peat moss, humidity, acidity actual, electrical conductivity, neutralization, degree of decomposition.

For citation: Nosnikov V. V., Sevruk Т. D. Influence of ash content of milled peat blank and neutralizing components on its electrical conductivity. Proceedings of BSTU, issue 1, Forestry. Nature Management. Processing of Renewable Resources, 2024, no. 1 (276), pp. 59–65 (In Russian). DOI: 10.52065/2519-402X-2024-276-7.

Abstract

Currently, peat substrates are widely used in forestry for growing planting material with a closed root system. Determining their quality parameters is a prerequisite for obtaining high-quality planting material. In Belarus, there is no methodology for assessing the quality of substrates for forestry based on the value of its electrical conductivity (conductometry method). The quality of the substrate largely depends on the characteristics of the peat used. Therefore, it is important to determine how characteristics such as the degree of decomposition and ash content of peat affect the change in the electrical conductivity of the solution over time. For the experiment, peat from a milled peat deposit was used “Zhuravlevskoe” in the UE “Vitebskoblgaz”, branch of the PC “Vitebsktorg”. As a result of an increase in the degree of decomposition and ash content of peat, the electrical conductivity value increases. Based on the research results, it was established that with an increase in the degree of decomposition and ash content of peat, the electrical conductivity value increases, which is in the range of 53.8–112.1 µS/cm. The addition of neutralizing substances (dolomite flour and chalk) leads to a slight change in the electrical conductivity of the substrates. The addition of dolomite flour at a dosage of 0.2 kg/m3 changes the electrical conductivity by 1.1 times, and 3 kg/m3 – by 1.6 times. Compared to flour, dolomite chalk at an application rate of 0.2– 3 kg/m3 has a greater influence on the change in the electrical conductivity of high-moor peat. When adding chalk at a dosage of 0.2 kg/m3 , the electrical conductivity changes by 1.1 times, and 3 kg/m3 – by 1.7 times.

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15.10.2023