Optimizing technological elements when growing cucumbers in non-heated green houses

Boyan Arnaoudov, Hriska Boteva, Yanina Arnaoudova

Abstract: The experimental work was conducted in non-heated glass house Venlo type in Maritsa VCRI – Plovdiv, with green house cucumbers Defense F1 variety, grown in three density of sowing: 1.44; 2.16 and 2.88 plant/m2. According to the plant density, proportionally were applied three levels of nutrition with NK (100, 150 and 200%). This study aims to determine the influence of the density of the prick off, over the growth and the economic productivity in green house cucumbers. It was found that the plants grown by the four-row scheme expressed the best growth display. The most production from first class formed the cucumbers in the four-row scheme: 7499 kg/ha-1 in 200% nutrition, and 7071 kg/ha-1 in 100% nutrition. The results for the total yield were identical. The plants grown in four rows with 200% nutrition and with 100% nutrition, exceeded all other variants by total yield, respectively, 8639 kg/ha-1 and 8344 kg/ha-1, and with lowest values were the cucumbers grown in two row scheme of growth - 4736 kg/ha-1. No significant differences were reported in the values of the indexes showing the average mass of the fruits from first, second class and total yield. With highest percentage of first class yield were the cucumbers, grown by the four-row scheme with additional nutrition (87.2%), followed by the appliance of the same scheme, without increasing the nutrition (85.9%) and the lowest part of production from first class, according to the total yield formed the plants from the two-row scheme of growth – 63.3%.

Keywords: Cucumbers; Defense F1; Density of sowing; Nutrition

Citation: Arnaoudov, B., Boteva, H. & Arnaoudova, Y. (2025). Optimizing technological elements when growing cucumbers in non-heated green houses. Bulg. J. Agric. Sci., 31(4), 772–776.

Date published: 2025-08-27