Raisa Vozhehova, Anatoly Vlashchuk, Olesia Drobit, Oksana Vlashchuk, Tetiana Marchenko, Vira Borovyk, Nataliia Valentiuk, Oleksandr Shablia and Hennadii Ivanov
Institute of Climate Smart Agriculture of the NAAS, sett. Khlybodarske, Odesa District 67667, Ukraine
Vozhehova, R., Vlashchuk, A., Drobit. O., Vlashchuk, O., Marchenko, T., Borovyk, V., Valentiuk, N., Shablia, O. & Ivanov, H. (2025). Formation of vegetative mass by white sweerclover (Melilotus albus Med.) annual plants. Bulg. J. Agric. Sci., 31(3), 488–496
The results of research on the growth of the above-ground mass of plants, as well as the formation of the yield of conditioned seeds of the annual white sweetclover depending on the variety composition, the width of the rows and nitrogen nutrition, are presented. It was determined that the smallest amount of raw above-ground mass of white sweetclover was formed when sowing with a row width of 60 cm. The most favorable conditions for the formation of above-ground dry mass of white sweetclover are created in the Pivdennyy variety when applying a dose of N60 and a row width of 45 cm. The highest yield of conditioned seeds of annual white sweetclover (495 kg/ha) and the maximum yield of conditioned seeds from a unit of area (89.0%) was provided by the cultivation of the Pivdennyy variety with a row width of 45 cm and nitrogen fertilization with a dose of N60. The modification variability (Vm, %) depending on the application of doses of nitrogen fertilizer and amounted to 2.65–9.26% for the Pivdennyy variety and 2.71–9.38% for the Donetsʹkyy annual variety.