TROTSENKO N. «DEVELOPMENT OF TECHNOLOGY FOR GROWING COMMERCIAL AND SEED CROPS OF QUINOA IN THE CONDITIONS OF THE NORTH-EASTERN FOREST-STEPPE OF UKRAINE»

A stable trend of recent decades is the differentiation of the food market due to the formation of specific goods groups. Nowdays both traditional crops (due to their varietal differentiation) and a group of rare and marginal crops, the valuable properties of which have not been used before, undergo "selection" for the ability to fill newly created niches. Quinoa is one of the promising crops for inclusion in the world production system of products of specific areas of nutrition. Chenopodium quinoa Willd. is an archaeophyte crop originated on the American continent, but it is currently actively spreading in countries with a developed market for organic agricultural production, primarily in the EU and China.In Ukraine, the process of introduction and distribution of quinoa is hindered by the lack of adapted varieties and effective technologies for growing both commercial and seed crops. The purpose of the research was to increase the efficiency of the crop industry of Ukraine due to the introduction of quinoa crop in the North-Eastern Forest-Steppe The parameters of field germination and crop thinning were determined: over the years of research, the value range of field germination was from 79 to 89%, with an average one of 85.4%; the thinning of seedlings and juvenile plants was 13.2%, varying from 5.3 to 25.4 %. The highest level of plant survival was observed in areas with a seeding rate of 1.2 and 1.6 million /ha. The correction coefficient of sowing rate for the final density was calculated, which was 0.73+0.2. With an increase in the rate of fertilizers, its value increased. It was established that the duration of the growing season depended on the influence of fertilizer and sowing rates: under the conditions of minimum fertilizer rates (N16P16K16 kg/ha) and minimum sowing rate (0.8 million/ha) in the experiment, the duration of the "seedling-harvest" period was 117 days. An increase in sowing rates led to period shortening to 115 days. The gradual increase in fertilizer rates was accompanied by a proportional increase in the duration of the pre-generative and generative periods of development, as well as the phase of technological maturity by +3, +3 and +4 days, respectively.zone of Ukraine. An economic evaluation of the experimental results was carried out. The profitability of quinoa cultivation with basic yield level of 2.58 t/ha was reached 304.5%, profit was 108.76 thousand/ha. An increase in yield with using N48P48K48+ N30 fertilizer rate can be accompanied by growth in profitability and profit indicators up to 315.0% and 121.57 thousand/ha, respectively.