The work deals with the research of the influence of Free N bacterial preparations (contains selected strains of Azotobacter chroococcum) and Free PK (contains selected strains of Bacillus mulaginosus) and their combinations (Free N + Free PK) on the yield of apples during their intensive cultivation in the orchard. The research took place in 2018 in Agrosad Velké Bílovice on the cultivar 'Super chief', grown in medium-heavy soil and grown-up five-year-old trees. The following indicators were examined: the effect on the amount of five minerals in the fruit (nitrogen, phosphorus, calcium, potassium and magnesium). Comparison with the Control showed that bacterial preparations had no effect on increasing the amount of all five substances studied in fruit. Similarly, it was at examining the amount of titratable acids in fruit, the amount of soluble solids, the amount of vitamin C in the fruit, the strength of the fruit peel, and the antioxidant capacity of the peel and pulp of the fruit. Only with the antioxidant capacity of the fruit peel, Free N exceeded the Control, but the comparison was statistically inconclusive. Further indicators were investigated: the effect of bacterial preparations on average apple weight in t/ha, also on apples below and above 70 mm, on average weight of apples in (g) and number of apples on trees. The check was always on the second, third and last place in the impact indicators. The effect of microbial agents (Free N, Free PK, and their combination) was slightly higher than Control. However, the differences were statistically inconclusive.
| Identifer | oai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:426611 |
| Date | January 2019 |
| Creators | Trefulková, Andrea |
| Source Sets | Czech ETDs |
| Language | Czech |
| Detected Language | English |
| Type | info:eu-repo/semantics/masterThesis |
| Rights | info:eu-repo/semantics/restrictedAccess |
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