Малообъемная и тонкослойная панопоника в интенсивной светокультуре огурца: основы и результаты применения

Abstract

Relevance . The year-round provision of the population of our country with fresh vegetable products remainsis relevant. The creation and widespread implementation of high-tech automated phytotechnological complexes based on innovative technologies for growing plants in intensive light culture, including the development of new-generation root-dwelling environments, low-volume and thin-layer analogs of soil and systems for providing plants with water and mineral nutrition elements, is one of the promising ways to solve this problem. The purpose . Assessment of the influence of root environment conditions on the production process of cucumber plants in intensive light culture is the aim of our work. Methods . The research was carried out under controlled conditions of intensive artificial-light culture, when growing a hybrid of cucumber Tristan F1 by using of low-volume and thin-layer analogs of soil with the supply of a nutrient solution to the plant roots through a slit capillary and by drip irrigation with the use of plant growing light equipment developed at Agrophysical Institute. Results . Evaluation of the influence of the conditions of the root environment - alow-volume analogue of the soil based on high-moor peat – agrophyte and a thin-layer analog of the soil based on a clay suspension with a feed of nutrient solution through a slit capillary, on the production process of cucumber plants showed that in comparison with the control – a low-volume analog of the soil-agrophyte with a feed of nutrient solution by drip irrigation, there is growth acceleration of the cucumber hybrid Tristan F1 in the form of a positive trend and reliable values; as well as a significant increase in the number of fruits by 38-43%, the weight of fruits by 52-53% from the plant; an increase in the accumulation of raw by 38-40% and dry weight by 27-32% by cucumber leaves; an increase in the leaf surface area by 38-40%, leaf water content by 7.3- 9.6%; a significant or positive trend increase in the content of calcium in cucumber fruits by 18-29%, magnesium by 20-29%, iron by 5-16%, vitamin C by 17-23%, while the content of heavy metals and nitrates does not exceed exceeded the MPC in all variants. Methods of growing plants on low-volume and thin - layer analogs of soil with the supply of a nutrient solution to the roots through a slit capillary can be recommended for any cultivation facilities in conditions of intensive light culture.