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Effects of silvicultural techniques on the diversity of microorganisms in forest soil and their possible participation in biological control of Armillaria and Heterobasidion

100%

Kwasna H., Walkowiak L., Lakomy P., Behnke-Borowczyk J., Gornowicz R., Mikicinski A., Galazka S., Szewczyk W.

Journal of Plant Protection Research

2015

tom 55

nr 3

Effects of different pre-planting soil preparations and post-harvest wood debris applications in a clear-cut Scots pine plantation, on the abundance, diversity, and activity of culturable microorganisms were investigated. The investigation was done 9 years after the re-plantings had been done. This formed part of an investigation of silvicultural practices for conservation and the biological control of Armillaria and Heterobasidion in northern temperate forests (Poland). The treatments being compared, were expected to have altered the soil’s physical and chemical properties, and consequently, its biological properties. Only soft-rot microfungi from the Ascomycota and Zygomycota were detected in the soil. Fungi, including those antagonistic to Armillaria and Heterobasidion, were more abundant after shallow ploughing than after deep ploughing or ridging, and where chipped rather than coarse wood debris was left on the soil surface or incorporated. Scots pine trees had the most biomass and the least mortality after ridging and leaving coarse wood debris on the surface (associated with only a relatively moderate abundance of fungi).

Ograniczanie wyników

1 Journal of Plant Protection Research

1 Behnke-Borowczyk J.

1 Galazka S.

1 Gornowicz R.

1 Kwasna H.

1 Lakomy P.

1 Mikicinski A.

1 Szewczyk W.

1 Walkowiak L.

1 2015

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Effects of silvicultural techniques on the diversity of microorganisms in forest soil and their possible participation in biological control of Armillaria and Heterobasidion