Abstract
The purpose of the research is to study the effect of biologically active substances in organic fertilizers on the productivity of tomato Sherami F1 in a winter greenhouse. The production experience was laid in a winter glazed greenhouse, which is located in the sixth light zone.The objects of research were cherry tomato plants Sherami F1, organic fertilizers 5AP, Maxifol Rutfarm, Nutrimir 4-4-10, Quick-Link. In the experiment, the average plant growth per week, the height of the plants, the number of leaves, the number of brushes collected and the average weight of the fetus, the chemical composition of the plants and yield were determined. The largest growth in a week and the tallest plants were obtained with Quick-Link; the most brushes collected and the largest fruits - when applying fertilizer 5AP. The use of organic fertilizers contributed to the better absorption of macronutrients by tomato plants from a nutrient solution: the content of nitrogen, phosphorus and potassium in the leaves and fruits increased relative to the control. When using biologically active substances in organomineral fertilizers, tomato productivity increased by 1.1-2.7 kg/m2 compared to the control, and the biochemical composition of the fruits improved.
Highlights
Over the past decade, greenhouse growing in the world has transformed into a highly industrialized agricultural sector
In our studies, using both leaf and root topdressings of tomato, we studied the effect of biologically active substances in organomineral fertilizers on the content of essential nutrients in leaves and fruits
The research results confirm that the use of biologically active substances in organomineral fertilizers when growing tomatoes in winter greenhouses increases the intensity of physiological processes and the productivity of the culture increases
Summary
Greenhouse growing in the world has transformed into a highly industrialized agricultural sector. Under optimal conditions of microclimate and nutrition, which are created in greenhouse complexes using modern equipment, it is possible to obtain a stable high productivity of vegetable crops. Tomato is an important vegetable crop that is widely grown throughout the world [1, 2]. Tomato is the second leading greenhouse growing culture after cucumber. The high nutritional value of tomato fruits is confirmed by stable demand. It is possible to increase tomato productivity with the help of various agricultural techniques: additional illumination of plants [3], irrigation mode [4], plant protection against diseases [5], and more
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