Influence of pruning on growth and productivity of glasshouse eggplant in biological fertilization

Stoyan Filipov, Kostadin Kostadinov and Violeta Valcheva
Agricultural University, Faculty of Horticulture and Viticulture, 4000 Plovdiv, Bulgaria

Abstract

Filipov, S., Kostadinov, K. & Valcheva, V. (2021). Influence of pruning on growth and productivity of glasshouse eggplant in biological fertilization. Bulg. J. Agric. Sci., 27 (Suppl. 1), 125–129

A field experiment to establish the influence of training on the growth and the level of productivity of greenhouse eggplant, cv. Traviata, in conditions of biological fertilization was carried out in 2013-2014 at the experimental glasshouses of Agricultural University – Plovdiv. Several variants have been tested: 1.Control- mineral fertilization and two-form formation; 2. Biological fertilization Naturale + StimAK and two-stemmed formation; 3. Biological fertilization Naturale + StimAK and three- stemmed formation. It was recorded the following indexes: phenology indicators: plant morphology/:morphology of fruit: productivity as early and average yield. Best of reported indicators is Naturale + StimAK  with two stems, with highest early yield – 955 kg.da-1 and total yield – 4062.7 kg.da-1 and which by mass fruiting in excess of the control is with 29.59% for fresh mass of the whole plant, with 44.73% for dry mass of the whole plant.. The results obtained showed that the Naturale + StimAK (fertigation)with two stems is the most suitable for biological production of greenhouse eggplant.

Keywords: greenhouse eggplant; pruning; biological fertilization; growth, productivity

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