Regulation of phytopathogenic background at use of biological preparations in agro-ecosystems of potato and in conditions of its storage

Borodaj, V.; Парфенюк, Алла Іванівна

doi:10.31073/agrovisnyk201910-06

Cited by 2 publications

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“…L. Tokmakova et al (2019) found that Agrobacterium radiobacter improves plants nutrition with phosphorus, providing for the improvement of maize yields. However, caution should be taken when applying Agrobacterium radiobacter preparations because these bacteria are pathogens for some agricultural species, e.g., pistachio seedlings (Basavand et al, 2022), while some other crops should be provided with additional protection, especially potato (Borodaj & Parfeniuk, 2019).…”

Section: Note: N -The Dose Of Nitrogen Fertilisers Applied Kg Ha -1 ;...mentioning

confidence: 99%

Microbial activity of dark-chestnut soil in winter wheat crops depending on fertiliser application

Bidnyna,

Lykhovyd,

Shablia

et al. 2024

Scientific Horizons

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Preventing soil degradation is an important task of modern agrarian science. Preservation and increase in beneficial soil microflora are a precondition for satisfactory ecological functioning of soil and its fertility. The purpose of this study was to investigate the dynamics of beneficial soil microflora in winter wheat crops under the impact of mineral fertilisers and Agrobacterium radiobacter on the lands of the south of Ukraine. The study was conducted in threefold replication in the conditions of the Kherson region in 2016- 2020 in the experimental fields of the Institute of Climate-Smart Agriculture of the National Academy of Agrarian Sciences of Ukraine. The study used a systematic design, and the following factors were investigated: no fertiliser and Agrobacterium radiobacter; N120P90; N90P60 + Agrobacterium radiobacter; N120P90 + Agrobacterium radiobacter. The study on the microflora composition in the soil layer at 0-30 cm was carried out in the main stages of winter wheat growth and development through the inoculation of nutritious environment. Statistical analysis was performed using the methods of analysis of variance, correlation, and regression analysis. Dynamic changes in the soil biota composition under the influence of the studied factor were established. The slightest response to mineral fertilisers and bacterial preparation application was in ammonifying bacteria, while the strongest response was in cellulosedegrading microorganisms. The winter wheat harvesting revealed a decrease in the number of ammonifying bacteria in the soil, while the number of nitrifying and cellulose-degrading microflora increased significantly. Regression models for the prediction of the number of nitrifying bacteria and cellulose-degrading microorganisms, developed based on experimental data, have great accuracy (the error is 3.78% and 7.79%), and allow determining the adverse effect of phosphorus fertiliser on the microflora of dark-chestnut soil. The study has no analogues in Ukraine and expands theoretical knowledge about the influence of mineral fertilisers and bacterial preparation, containing Agrobacterium radiobacter, on the composition of beneficial microflora of the dark-chestnut soil

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Section: Note: N -The Dose Of Nitrogen Fertilisers Applied Kg Ha -1 ;...mentioning

confidence: 99%

Microbial activity of dark-chestnut soil in winter wheat crops depending on fertiliser application

Bidnyna,

Lykhovyd,

Shablia

et al. 2024

Scientific Horizons

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Biological complexes bases upon bacterium Pseudomonas fluorenscens and matters of stimulating nature, and their impact on plant growth and development

Solomiichuk¹

2022

qpp

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Goal. The analysis of biocomplex combinations with stimulating nature preparations and different derivative ammonium salts of dihidropirimidine and their efficience study. Methods. The bacterium strain АР-33 Pseudomonas fluorenscens was the researches subject.The biotechnological methods of researches used during the work.The concentration of viable CFU/cm3 determined as per Koch’s method. The preparation efficiency determined at different rate against fungi diseases. The records conducted as generally approved techniques with experimental methods in phytopathology and plant protection. Results.The derivatives of ammonium salts of dihydropirymidine did not show toxic action on concentration decrease of viable cells of bacterium strain АР- 33 Pseudomonas fluorescens. The best weight indexes 100 seeds and quantity of beans forming in soybean showed the combination Planrise — 5 l/ha + 0.1% Xymedon + 0.2% succinic acid solution + 2 ml DMAE + 2 ml DMSO. All biocomplexes combinations showed preparations efficiency against diseases in the scope 59.31—69.63%. The yield increase recorded in 1.15—1.7 times in comparison with control by the results of biocomplexes usage with their fungicide, immunoprotective and stimulating action. The combination Planrise Strain bacterium АР-33 Pseudomonas fluorescens, 3 × 109 CFU/ cm3), 5 l/ha + 0.1% xymedon solution + 0.2% succinic acid solution + 2 ml DMAE + 2 ml DMSO. It was consisted of 3.4 t/ha. The preparation’s efficiency against late blight consisted of 79.1%. Conclusion. All biocomplexes’ combinations usage showed the preparations’ efficiency against diseases in scope 67.3—88.1%. The additional matters DMAE and DMSO (they have influence on transmembrane functions) usage allows to increase preparations efficiency on 8—25% in comparison with combinations without their usage.

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Regulation of phytopathogenic background at use of biological preparations in agro-ecosystems of potato and in conditions of its storage

Cited by 2 publications

References 0 publications

Microbial activity of dark-chestnut soil in winter wheat crops depending on fertiliser application

Microbial activity of dark-chestnut soil in winter wheat crops depending on fertiliser application

Biological complexes bases upon bacterium Pseudomonas fluorenscens and matters of stimulating nature, and their impact on plant growth and development

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