Impact of Effective Microorganisms (EM) Application on the Physical Condition of Haplic Luvisol

Autor: Jacek Pranagal, Halina Smal, S Ligeza
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Agronomy
Volume 10
Issue 7
Agronomy, Vol 10, Iss 1049, p 1049 (2020)
ISSN: 2073-4395
DOI: 10.3390/agronomy10071049
Popis: The study set out to determine changes in the soil air-water properties, the water-stable aggregate share and organic carbon content as effects of a five-year application of effective microorganisms (EM-A). The hypothesis that long-term applied EM-A biopreparations have a positive effect on the soil physical condition has not been confirmed. Haplic Luvisols originating from silt were studied in a field experiment after EM-A biopreparation treatment. The soil samples with the natural structure preserved intact were collected three times each year. The properties of the soil determined in the study were: particle density, total organic carbon content, bulk density, total porosity, air capacity, air permeability, soil moisture at sampling, field water capacity, available water content, unavailable water content, and water-stable aggregate content. The ratio of field water capacity and total porosity (FC/TP) was calculated. It was found that EM-A application primarily leads to a decrease in the content of organic carbon and water-stable aggregates. This was an adverse effect. Total organic carbon (TOC) and water-stable aggregates proved to be very sensitive indicators for assessing the soil physical condition. However, changes in soil compaction and air&ndash
water properties did not show significant deterioration. Our research addresses the data gaps about EM application to soil.
Databáze: OpenAIRE
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