Published in Scientific Papers. Series A. Agronomy, Vol. LXVIII, Issue 2
Written by Antoniya STOYANOVA, Georgi STOYANOV
A field experiment was conducted with five maize hybrids during the period 2022-2024. The parameters of the yield of green mass, of the additional yield formed under the influence of foliar fertilization, have been established. The application of the organic liquid fertilizer Aminosol, the single-component inorganic fertilizers Boron, Zinc and Nutriplant 36 contributed to an increase in biomass by 20608.4 to 26799.0 kg/ha, on average over the study period. After treatment with the organo-mineral fertilizer Kinsidro Grow and the nitrogen stabilizer N-Lock, an increase in the productivity of the hybrids was again established. The greatest increase was registered at LG 31,390, respectively with 26068.8 kg/ha. In total, for hybrids and variants for the period of the field study, an increase of 41.4% was recorded after foliar fertilization with the products of the first technology. A strong correlation was established between the indicators of plant height and green mass yield for Premeo (R2 = 0.9284) and Pioneer P9889 (R2 = 0.9043). A positive correlation dependence, with a coefficient of determination R2 = 0.8998 for DKC 4416.
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