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Article

The Influence of Organic Fertilizers on the Abundance of Soil Microorganism Communities, Agrochemical Indicators, and Yield in East Lithuanian Light Soils

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Lithuanian Research Centre for Agriculture and Forestry, Vokė Branch of Institute of Agriculture, Žalioji Sq. 2, LT-02232 Vilnius, Lithuania
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Agrochemical Research Laboratory of Institute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry, Savanoriu Av. 287, LT-50127 Kaunas, Lithuania
*
Author to whom correspondence should be addressed.
Academic Editors: Giedrė Samuolienė, Neringa Rasiukeviciute, Lina Šernaitė and Darius Kviklys
Plants 2021, 10(12), 2648; https://doi.org/10.3390/plants10122648
Received: 21 October 2021 / Revised: 28 November 2021 / Accepted: 29 November 2021 / Published: 2 December 2021
(This article belongs to the Special Issue Selected Papers from Conference of CYSENI 2021)
Soil microorganisms are one of the main indicators used for assessing the stability of the soil ecosystem, the metabolism in the soil, and its fertility. The most important are the active soil microorganisms and the influence of the fertilizer applied to the soil on the abundance of these microorganisms. We aimed to investigate how the applied organic fertilizers affect the most active soil microorganisms, which determine the soil fertility and stability. Fungi, yeast-like fungi abundance, and abundance of three physiological groups of bacteria were analyzed: non-symbiotic diazotrophic, organotrophic, and mineral nitrogen assimilating. This study is valuable because relatively few similar studies have been performed on infertile Lithuanian soils. The first results of a long-term study were obtained. The results show the effect of fertilizers on trends in the changes of microorganism community diversity; however, more analysis is needed to assess the impact of organic fertilizers on the most active soil microorganisms. Therefore, the investigation was continued. The results of the 2020 quantitative analysis of culturable soil microorganisms show that the highest abundance of organotrophic and non-symbiotic diazotrophic bacteria were recorded during the summer season. Meanwhile, the abundance of bacteria assimilating mineral nitrogen and fungi was higher in autumn. Agrochemical parameters were determined at the beginning of the experiment. The highest concentration of Nmin in the soil was determined after fertilizing the plants with the combination of granulated poultry manure (N170) + biological substance Azotobacter spp. The yield of barley was calculated. It was found that the highest yield of spring barley in 2020 was obtained by fertilizing the experimental field with organic in combination with mineral fertilizers. View Full-Text
Keywords: physiological groups of soil microorganisms; fertilization; agroecosystems physiological groups of soil microorganisms; fertilization; agroecosystems
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MDPI and ACS Style

Sivojiene, D.; Kacergius, A.; Baksiene, E.; Maseviciene, A.; Zickiene, L. The Influence of Organic Fertilizers on the Abundance of Soil Microorganism Communities, Agrochemical Indicators, and Yield in East Lithuanian Light Soils. Plants 2021, 10, 2648. https://doi.org/10.3390/plants10122648

AMA Style

Sivojiene D, Kacergius A, Baksiene E, Maseviciene A, Zickiene L. The Influence of Organic Fertilizers on the Abundance of Soil Microorganism Communities, Agrochemical Indicators, and Yield in East Lithuanian Light Soils. Plants. 2021; 10(12):2648. https://doi.org/10.3390/plants10122648

Chicago/Turabian Style

Sivojiene, Diana, Audrius Kacergius, Eugenija Baksiene, Aiste Maseviciene, and Lina Zickiene. 2021. "The Influence of Organic Fertilizers on the Abundance of Soil Microorganism Communities, Agrochemical Indicators, and Yield in East Lithuanian Light Soils" Plants 10, no. 12: 2648. https://doi.org/10.3390/plants10122648

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