Pedosphere 31(4): 560--571, 2021
ISSN 1002-0160/CN 32-1315/P
©2021 Soil Science Society of China
Published by Elsevier B.V. and Science Press
Soil micromorphological and physical properties after application of composts with polyethylene and biocomponent-derived polymers added during composting
Monika MIERZWA-HERSZTEK1,2, Krzysztof GONDEK1, Altaf Hussain LAHORI3, Michał KOPEĆ1, Ryszard MAZUREK4, Tomasz ZALESKI4, Tomasz GŁĄB5, Jerzy WIECZOREK1
1Department of Agricultural and Environmental Chemistry, University of Agriculture in Krakow, al. Mickiewicza 21, Krakow 31-120 (Poland);
2Department of Mineralogy, Petrography and Geochemistry, AGH University of Science and Technology, al. Mickiewicza 30, Krakow 30-059 (Poland);
3Department of Environmental Sciences, Sindh Madressatul Islam University, Karachi 74000 (Pakistan);
4Department of Soil Science and Soil Protection, University of Agriculture in Krakow, al. Mickiewicza 21, Krakow 31-120 (Poland);
5Institute of Machinery Exploitation, Ergonomics and Production Processes, University of Agriculture in Krakow, ul. Balicka 116B, Krakow 31-149 (Poland)
Corresponding Author:Monika MIERZWA-HERSZTEK
ABSTRACT
      Composts are considered to be one of the best soil amendments. However, the effects of composts with added polymeric materials on soil physical, hydraulic, and micromorphological properties have not been widely discussed. Changes in soil physical properties influence the numerous services that soils provide. We studied the impacts of composts with the addition of three different polymers (F1-F3) produced from polyethylene and thermoplastic corn starch on the physical, hydraulic, and micromorphological properties of two soils, a Cambic Phaeozem and a Luvic Phaeozem. Applying composts with polymers had limited or no significant effect on soil bulk density and porosity, but increased the field water capacity by 18%-82% and 3%-6% and the plant-available water content by 15%-23% and 4%-17% for the Cambic Phaeozem and Luvic Phaeozem, respectively. The application of composts with polymers had a greater effect on the Cambic Phaeozem than on the Luvic Phaeozem. It was suggested that the use of modified composts led to changes in soil physical properties and micromorphological features and this effect was dependent on the compost application rate. Composts made with the addition of composite synthetic and natural material-derived polymers during composting were found to be a composite mixture that can be successfully used in agriculture.
Key Words:  composite mixture,corn starch,field water capacity,plant-available water content,porosity,soil bulk density,soil micromorphology,soil water retention
Citation: Mierzwa-Hersztek M, Gondek K, Lahori A H, Kopeć M, Mazurek R, Zaleski T, Głąb T, Wieczorek J. 2021. Soil micromorphological and physical properties after application of composts with polyethylene and biocomponent-derived polymers added during composting. Pedosphere. 31(4): 560-571.
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