COMPARATIVE EVALUATION OF DIFFERENT TYPES OF GROWING KALE CABBAGE ON HYDROPONICS

Introduction of a new culture for Kazakhstan - kale cabbage, identification and assessment of the best varieties, study of growing methods in various conditions (open and protected soil), will contribute to the diversification of vegetable growing in the country, expanding the species composition of vegetable crops. At the same time, the population will have the opportunity to receive vitamin products year-round. In the state register of breeding achievements recommended for use in the Republic of Kazakhstan, there is no registration not only of varieties, hybrids of kale leaf cabbage, but also as a crop in general. Therefore, the study and recommendation of this culture is of great importance for the country's agro-industrial complex.

The best indicators in terms of growth factors and productivity were observed using NFT technology compared to aquaponics both for the first month of vegetation and for the entire cultivation period: in terms of stem height - 136.4-165.1%; by the number of leaves - 123.3-181.6%; by average sheet area - 245.6-278.3%, by productivity from 195.3 to 461.58%. At the same time, it should be borne in mind that sheet products obtained on aquaponics are environmentally friendly and do not contain nitrates, and its cost is much lower than according to NFT technology, where mineral fertilizers were used.

The data presented in the article are part of the research carried out as part of a doctoral dissertation, the purpose of which is to study a new culture for Kazakhstan - kale cabbage, identify the most productive hybrids for various methods of growing both in open and protected ground, the possibility of creating a green conveyor for year-round provision of the population with fresh vitamin products.