DYNAMICS OF SUBSTRATE HUMIDITY INDICATORS DEPENDING ON THE DOSE OF WETTING AGENT

UDC 630*232

  • 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

  • Yurenya Andrey Vladimirovich − 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: urenya@belstu.by

  • Selishcheva Oksana Aleksandrovna − PhD (Agriculture), Senior Lecturer, the Department of Forest Plantations and Soil Science. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: oksana_selishchava@mail.ru

  • Granik Aleksandr Mikhaylovich − Master of Agriculture, Assistant Lecturer, the Department of Forest Plantations and Soil Science. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: granik@belstu.by

  • Alam Michel − РhD student, the Department of Forest Plantations and Soil Science. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: michelalalam@gmail.com

DOI: https://doi.org/10.52065/2519-402X-2022-258-2-72-78

Key words: peat substrate, substrate moisture, wetting agent, absorption rate, filtration.

For citation: Nosnikov V. V., Yurenya А. V., Selishcheva O. A., Granik A. M., Alam M. Dynamics of substrate humidity indicators depending on the dose of wetting agent. Proceedings of BSTU, issue 1, Forestry. Nature Management. Processing of Renewable Resources, 2022, no. 2 (258), pp. 72–78 (In Russian). DOI: https://doi.org/10.52065/2519-402X-2022-258-2-72-78.

Abstract

The article presents the results of studies of the effect of various doses of the wetting agent “white” “Fiba-zorb plus” in the composition of the substrate based on peat on the absorption of moisture during irrigation. The dosage of the wetting agent in the experiment was 1, 2 and 3 kg/m3 . Before watering, the peat substrate was dried to various moisture levels in order to create various conditions that can be observed when growing container planting material in a greenhouse: critical humidity (at a substrate moisture content of about 10% for an absolutely dry sample), lower technological level (at a substrate moisture content of about 45% per wet dry sample). Under such conditions, the following were established: the rate of water absorption by a lump of peat substrate, humidity after irrigation, loss of moisture by the substrate at various temperatures. Thus, with the help of the experiment, the optimal dosage of the wetting agent “Fiba-zorb plus” was established, which was 2 kg/m3 . With this dosage, the substrate absorbs moisture better, the uniformity of wetting and the duration of water retention by the substrate increase.

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28.02.2022