Assessment of the effect of a complex of biological products on the growth, development and yield of cucumber in light culture

The ecologization of protected soil is currently one of the most important tasks of agricultural production, in this regard, for the vegetable growing of protected soil, the introduction of effective microorganisms into the substrate when growing plants in low-volume technology is of great interest. Biologics can enhance metabolic processes in the nutrient substrate and plants, plant resistance to adverse environmental conditions, increase plant productivity and improve product quality. Therefore, the purpose of our work is to analyze the effect of a complex of biological products on the agrobiological parameters of cucumber hybrids Mewa F1 and Valigora F1 on the 39, 67, 95 and 123 day of cultivation from the appearance of mass shoots. The research was carried out in conditions of high industrial greenhouses of the "Venlo" type, in the winter-spring turns of 2021 and 2022. The preparations were introduced into the tank mixture and fed to the plants through a drip irrigation system. Measurements of economically valuable indicators were noted weekly. Descriptive statistics and ANOVA methods were used for statistical data analysis.

Results. When using biological products, a positive effect was noted on the growth and development of cucumber plants, as well as on the increase in leaf plate and leaf surface area (LAI). The dates of the onset of single and mass flowering of plants and single fruiting occurred earlier when using a complex of biological preparations for 1-5 days. When assessing the effect of the complex of biological products on the development of the photosynthetic apparatus, the positive effect of biological products on the area and index of the leaf surface on the 39, 67 and 95 days of cultivation was established. In addition, a significant effect of the complex on the increase in yield per m2 per turnover was revealed. In the conducted studies, the increase in yield was due to an increase in the weight and diameter of fruits. The total height of the plants and the weekly growth of the complex of drugs practically did not affect. A comparative analysis of the growth processes and yield of cucumber hybrids Mewa F1 and Valigora F1 when applying root fertilizing with a complex of biological preparations showed great effectiveness from their use.

1. Korol V.G. Recommended cucumber hybrids for growing in greenhouses under conditions artificial lighting. Vegetable crops of Russia. 2021;(5):32-38. (In Russ.) https://doi.org/10.18619/2072-9146-2021-5-32-38. EDN AIGLMR.

2. Saeed K., Ahmed S.A., Hassan I.A., Ahmed P.H. Effect of bio-fertilizer and chemical fertilizer on growth and yield in cucumber (Cucumis sativus L.) in green house condition. Am. Eurasian J. Agric. Environ. Sci. 2015;(15):353- 358.

3. Yuvarov V.N., Shlykov D.A. The main diseases of cucumber in light culture and measures to combat them. Gavrish. 2022;(1):37-40. (In Russ.)

4. Bocharova M.A., Terekhova V.I. Influence of additional illumination sources on cucumber yield in winter-spring turnover of industrial greenhouses. In the collection: Vegetable growing - from theory to practice. Collection of articles based on the materials of the VI regional scientific and practical conference of young scientists. Krasnodar, 2022. pp. 5-8. (In Russ.)

5. Arslanova R.A., Ionova L.P., Vilkova Zh.A. [et al.]. Cucumber cultivation in a spring-summer greenhouse with the use of biological preparations. Potatoes and vegetables. 2019;(6):14-15. 2019;(6):14-15. DOI 10.25630/PAV.2019.12.65.003. EDN CVDMHC (In Russ.)

6. Belikova E.I., Goryunova O.B., Shagaev A.Yu., Markvichev N.S. Light culture and plant diseases. Gavrish. 2021;(4):48-51. (In Russ.)

7. Belikova E.I., Shagaev A.A., Goryunova O.B., Markvichev N.S. Manage stress. Vitamin. Gavrish. 2021;(2):63-66. (In Russ.)

8. Akhatov A.K., Babkina O.D. Useful microbiota in greenhouse substrates. Gavrish. 2021;(2):55-57. (In Russ.)

9. Sidorenko O.D. Prospects for the use of biological preparations based on microorganisms. Izvestiya of Timiryazev Agricultural Academy. 2012;(6):70- 79. EDN PZFQGR. (In Russ.)

10. Orlova O.N. Biological protection of cucumber from root rot in film greenhouses of the 3rd light zone. Dis... Candidate of Agricultural Sciences: 06.01.09 / Orlova Oksana Nikolaevna; [Place of protection: State Scientific Institution "All-Russian Research Institute of Vegetable Growing of the Russian Academy of Agricultural Sciences"], 2015. 122 p. (In Russ.)

11. https://www.biom-group.ru/blog/biologicheskaya-zashchita-v-rassadnyyperiod/

12. Dospekhov B.A. Methodology of field experience: (with the basics of statistical processing of research results). M.: Kolos. 1985. 416 p. (In Russ.)

13. Puchkov M.Yu., Mohamed M.M.A. Studying the influence of growth regulators on vegetable crops. Natural sciences. 2017;1(58):13-22. (In Russ.)

14. Kurepin A.V., Pershin A.F., Mulyar V.N., Belova M.K. Measuring the area of cucumber leaves without separation from the plant for mass analysis. Vegetable crops of Russia. 2023;(2):17-28. (In Russ.) https://doi.org/10.18619/2072-9146-2023-2-17-28. EDN QDCDAA.

15. Ni D., He H., Kirkham M.B., Kanemasu, E.T. Photosynthesis of grass C3 and C4 at elevated CO2 content. Photosynthetics. 1992;(26):189-198.