Influence of different irrigation scheduling and mineral fertilization on tomato determinant sort Nikolina F1
Vesela Petrova-Branicheva
, Emil Dimitrov
, Antoaneta Gigova
, Maria Ivanova
Abstract: Field experiments were conducted in 2020 – 2021 with a medium-early sort of tomato "Nikolina" F1, grown on Cinnamon Forest soils (Chromic Luvisols, FAO) in the Sofia experimental field of the Institute of Soil Science, Agrotechnologies and Plant Protection “Nikola Poushkarov”. Different irrigation and fertilization regimes were applied to the determinant tomato “Nikolina”F1, grown in an open field. In the experiment, two levels of irrigation scheduling and three fertilization regimes were performed with four replications. The vegetable crops were irrigated using drip irrigation technology, and fertilizers were applied using an injector with the drip irrigation system. The evaluated factors in the study were 100% and 50% irrigation rate, and increasing mineral fertilization rates: N15P8K15; N20P12K20 and N25P16K25. In the control treatments, 100% irrigation rate and 50% irrigation without fertilization were applied. The influence of drip irrigation and fertilization with different fertilizer norms has been found on crop yields.
Keywords: drip irrigation; fertilization; irrigation scheduling; tomato
Citation: Petrova-Branicheva, V., Dimitrov, E., Gigova, A., & Ivanova, M. (2026). Influence of different irrigation scheduling and mineral fertilization on tomato determinant sort “Nikolina” F1. Bulg. J. Agric. Sci., 32(2), 286–291
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| Date published: 2026-04-29
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