The effect of various water-soluble fertilizers on the productivity of potato plants of the Dochka variety in aeroponics

Abstract

The possibility and the prospects of using various water-soluble fertilisers for growing healthy planting material of potato variety Dochka under aeroponics conditions have been studied. Two variants of water-soluble fertilisers were used as objects of study: 1) Nutriflex-T complex fertiliser at a concentration of 2 g/l with the addition of calcium nitrate 4-aqueous at a concentration of 0.35 g/l; 2) author's water-soluble fertiliser Martirosyan Yu.Ts. At a concentration of 1 g/l. In the experiments, healthy potato microplants of the Dochka variety were used. The experiments were carried out on aeroponic systems "Urozhay-9000". Sodium sodium-vapour lamps DNAT 400 were used as a light source. After 30 days of cultivation on a water-soluble fertiliser, the height of potato plants and the length of the root system in the studied variants did not differ in the version using the author's environment, Martirosyan Yu.Ts. Compared with the variant with the use of the Nutriflex-T complex fertiliser, a statistically significant increase in the following indicators was observed: the average number of mini tubers obtained from one plant (17.38±0.29 pcs. pieces/bush compared to 14.44±0.35 pieces/bush), the average weight of one mini tuber (8.17±0.29 g compared to 5.47±0.26 g), the proportion of mini tubers weighing over 4 g (67.63% compared to 46.10%), biomass of the root system at the end of cultivation (33.31±0.45 g compared to 30.31±0.35 g). At the same time, the biomass of the vegetative part of potato plants at the end of cultivation on the Nutriflex-T fertiliser was higher than the biomass of the vegetative part of plants grown on the nutrient medium of Martirosyan Yu.Ts. (284.06±4.77 g compared to 151.25±2.45 g). It is shown that the cultivation of potato plants of the Dochka variety on the author's water-soluble fertiliser Martirosyan Yu.Ts. It is economically viable.