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Effect of application of EM spraying on the populations and activity of soil microorganisms occurring in the root zone of spring barley

100%

Wielgosz E., Dziamba S., Dziamba J.

Polish Journal of Soil Science

2010

tom 43

nr 1

The objective of the study was comparison of populations of selected physiological groups of bacteria, and determination of their enzymatic and biochemical activity in soil under a culture of spring barley after the application with effective microorganisms (EM) and without such a treatment. The application of spraying with the EM biopreparation caused an initial decrease in the numbers of most of the studied physiological groups of microorganisms and lowering of the activity of the enzymes under study, after which certain increasing trends were observed.

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The effect of biopreparations on the formation of rhizosphere microorganism populations of soybean [Glycine max [L.] Merrill.]

100%

Patkowska E.

Acta Scientiarum Polonorum. Hortorum Cultus

2005

tom 04

nr 2

The object of a field experiment conducted in the years 2003–2004 was the rhizosphere soil of soybean ‘Mazowia’ cv. Before the sowing, the seeds were dressed with biopreparations (Biochikol 020 PC, Biosept 33 SL, Polyversum) or fungicide (Oxafun T). The non-dressed seeds constituted the control. The microbiological analysis of the rhizosphere soil of soybean, carried out at anthesis, showed that the greatest number of bacteria in total and bacteria Bacillus spp. and Pseudomonas spp. occurred after the application of Biochikol 020 PC, while the lowest occurred in the control combination. The smallest number of fungi was observed after the application of Biochikol 020 PC or Oxafun T, slightly bigger after the introduction of Biosept 33 SL or Polyversum into the soil, while the biggest in the control combination. Fungi from the genera of Alternaria, Fusarium, Pythium and Gliocladium, Penicillium, and Trichoderma were most frequently isolated from the rhizosphere of soybean. After the application of biopreparations the proportion of pathogenic fungi in the rhizosphere of soybean was much smaller than in the control. The highest proportion of Gliocladium spp. occurred after the application of Polyversum or Biochikol 020 PC, while that of Trichoderma spp. after the introduction of Biochikol 020 PC or Biosept 33 SL. Besides, tests on dishes showed that the biopreparations and the fungicide used in the experiment contributed to increased numbers of antagonistic bacteria (Bacillus spp. and Pseudomonas spp.) and fungi (Gliocladium spp. and Trichoderma spp.).

Ograniczanie wyników

1 Acta Scientiarum Polonorum. Hortorum Cultus

1 Polish Journal of Soil Science

1 Dziamba J.

1 Dziamba S.

1 Patkowska E.

1 Wielgosz E.

1 2010

1 2005

Wyniki wyszukiwania

Effect of application of EM spraying on the populations and activity of soil microorganisms occurring in the root zone of spring barley

The effect of biopreparations on the formation of rhizosphere microorganism populations of soybean [Glycine max [L.] Merrill.]