Possibilities of biopreparation uses for disease control in conservation agriculture
2008
Vach, M.,Vyzkumny Ustav Rostlinne Vyroby, Prague (Czech Republic) | Hysek, J.,Vyzkumny Ustav Rostlinne Vyroby, Prague (Czech Republic) | Javurek, M.,Vyzkumny Ustav Rostlinne Vyroby, Prague (Czech Republic)
To ascertain the influence of microorganisms from biopreparations (Supresivit, Polyversum and Ibefungin) on the quantitative and qualitative production characteristics of winter wheat and different soil tillage technologies were employed for stand establishment (conventional with ploughing, minimum tillage with straw incorporation, no tillage). The experiments in luvisol were drawn-up as a rotation of three crops: pea, winter wheat, and spring barley. We verified the impacts of the chosen microrganisms (Trichoderma harzianum in Supresivit, Pythium oligandrum in Polyversum, Bacillus subtilis in Ibefungin) on both the qualitative and quantitative parameters of winter wheat and spring barley. There were seven different treatments of wheat and seven of barley including checks. The highest yield of wheat (8.05 t/ha) was recorded with the conventional treatment. If the conventional treatment is considered as 100%, then the yield from parcels under the minimum tillage treatment was 97.3% and the yield under the no tillage treatment was 98.1%. The highest yields of barley were reached after application of Supresivit with ammonium sulphate. Protein concentrations in barley grains ranged from 9.6 to 12.5%. Our results document that the preparations used could influence favourably the health state of field crops in conservation soil-tillage systems.
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