ORIGINAL RESEARCH
The Influence of Trichoderma on the Phytosanitary Status of Soil and Yield of Red Beets (Beta vulgaris L. subsp. vulgaris)
Agnieszka Wolna-Maruwka1, Tomasz Piechota2, Jacek Dach3, Magdalena Szczech4, Izabela Szczerbal5, Alicja Niewiadomska1, Anna Budka6, Renata Gaj7
 
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1Poznań University of Life Sciences, Department of General and Environmental Microbiology,
Szydłowska 50, 60-656 Poznań, Poland
2Poznań University of Life Sciences, Department of Agronomy,
Dojazd 11, 60-656 Poznań, Poland
3Poznań University of Life Sciences, Institute of Biosystems Engineering,
Wojska Polskiego 50, 60-656 Poznań, Poland
4Research Institute of Horticulture, Konstytucji 3 Maja 1/3, 96-100 Skierniewice, Poland
5Poznań University of Life Sciences, Department of Genetics and Animal Breeding,
Wołyńska 33, 60-637 Poznań, Poland
6Poznań University of Life Sciences, Department of Mathematical and Statistical Methods,
Wojska Polskiego 28, 60-637 Poznań, Poland
7Poznań University of Life Sciences, Department of Agricultural Chemistry and Environmental Biogeochemistry,
Wojska Polskiego 38/42, 60-637 Poznań, Poland
Online publish date: 2017-03-22
Publish date: 2017-03-22
Submission date: 2016-06-29
Final revision date: 2016-09-05
Acceptance date: 2016-09-05
 
Pol. J. Environ. Stud. 2017;26(2):847–859
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ABSTRACT:
Our article describes a study on the influence of mineral and organic fertilisation and three strains of Trichoderma sp. isolated from Polish soils on the count of moulds, including the Fusarium and Alternaria genera, as well as the soil fertility index and the yield of red beets. Apart from that, the aim of the study was to assess the interaction between Trichoderma sp. and plant pathogens. A field experiment was performed on haplic luvisols soil in 11 combinations: a control sample, a variant with a mineral fertiliser, one with manure and eight variants where tomato or onion waste composts were applied. Some of them were inoculated with Trichoderma atroviride (T1) and/or T. harzianum (T2 and T3) isolates. The total count of moulds and the counts of Trichoderma sp., Fusarium sp., and Alternaria sp. in the soil were the most strongly influenced by the addition of mineral fertiliser and manure. On the other hand, the values of the soil fertility index were the highest in the soil enriched with manure, followed by the soil combinations with tomato waste composts. Vegetable waste composts applied to the soil proved to be good carriers of Trichoderma sp. isolates. The study did not prove any antagonistic effect of Trichoderma sp. isolates on the proliferation of Alternaria sp. The growth and development of Fusarium sp. was inhibited by the Trichoderma – T3 strain on its own or in combination with isolate Trichoderma – T1.
The yield of red beet roots and leaves was the highest in the combination with the mineral fertiliser and in the soil fertilised with the composts that had been simultaneously inoculated with two strains, i.e., Trichoderma – T1 and Trichoderma – T2, or Trichoderma – T1 and Trichoderma – T3.
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ISSN:1230-1485