Published in Scientific Papers. Series B, Horticulture, Vol. LXVII, Issue 1
Written by Mykola KHARYTONOV, Mykhailo BABENKO, Svitlana LEMISHKO, Larisa SHUPRANOVA, Yelizaveta CHERNYSH, Hynek ROUBIK
The main objective of our case study was related to a comparative assessment of chemical and organic fertilizers on yield and quality of vegetables in arid conditions. The highest yield of two pepper hybrids was fixed in the trial fertigated with liquid digestate fraction and equipped with sunlight protective mesh. The fresh red tomato yield was highest after foliar spraying treatment with vermicompost tea (6.95 kg/m2) and carbamide (7.23 kg/m2) in the second field experiment. The relative additional yield of aubergine fruits (11.6-12.1%)
and pepper (12.0-12.7%) was higher in case of drip fertigation. The aubergine fruits have a high peroxidase activity. The high activity of peroxidase was especially observed in fruits when using vermicompost tea. The use of drip fertigation proved to be a more efficient operation of the peroxidase system in pepper fruits compared to foliar spraying. The study of molecular forms of peroxidase in tomato seeds showed their small number (six components) and variability of expression under different growing conditions. Significant inhibition of isoperoxidase activity was observed in carbamide treatment after foliar spraying of tomato plants.
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