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Bulgarian Journal of Soil Science, Agrochemistry and Ecology
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Growing Events and Yields in The Field of Tomato-Canning Direction, Depending on the Fertilization
Ivanka Mitova, Vesselina Vasileva, Vanya Lozanova, Nikolai Dinev
Abstract: On the alluvial-meadow soil in the ISSAPP “N. Pushkarov”, an experiment has been conducted with tomatoes after pumpkin-cultivated on the same area and according to the same fertilization scheme in the previous year. The experience included a control (without fertilizer) and variants fertilized with only mineral, organic fertilizer and 50% manure + 50% mineral fertilizer.
It was found that in the two investigated phenophases “formation of worms” and “beginning of ripening”, plants of the Rio grande variety with applied organo-mineral fertilization formed higher plants, with a larger root diameter in the root nose, number of leaves, branching inflorescences and watery compared to tomatoes fertilized with 100% mineral or manure. Combined fertilizer yield (4307.4 kg.da-1) is 1.45 times greater than the average yield for the experimental variants, 2.58 times larger than non-fertilized plants, 1.84 times compared to organic fertilizer, and 1.21 imes compared to the mineral fertilization variant. For organo-mineral fertilization plants, the fruit yield / vegetative
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mass ratio is 2.30, for mineral fertilizers variant – 1.35, and for organic fertilizers variant – 1.29
Keywords: biomass; biometric; mineral; organic
Date published: 2017-07-25
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