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Relevance. The application of new techniques in the technology of cannabis cultivation is an important direction for the stabilization and growth of the efficiency of the hemp industry. The selection of the optimal seeding rate in combination with non-root treatment with an ordinary seeding method will solve the issue of realizing the productivity potential of a new variety of Lyudmila seeded hemp. Methods. In order to optimize the cultivation methods of a new variety of cannabis Lyudmila, studies were conducted in accordance with the methodological guidelines for registration tests of fungicides in agriculture, methodological guidelines for production testing of research and development. The indicators of photosynthetic activity of plants in crops were determined by the method of A.A. Nichiporovich. The mathematical processing of experimental data was carried out by the method of dispersion analysis. Results. Field germination was 66–75% of the laboratory, plant safety was higher at a seeding rate of 3 million/ha (220.4 pcs/m²). The leaf area was increased in variants with a seeding rate of 2.0 and 2.5 million/ha due to optimal plant placement. Non-root treatments with «Izagri Phosphorus» and «Humate+7» preparations increased the leaf area during all stages of ontogenesis. Non-root treatments and seeding rates affected the accumulation of total and long fiber – high yields of stems (11.9–15.9 t/ha) and fiber (3.43–5.04 t/ha) were obtained using the «Izagri Phosphorus» treatment option. The thickening of the stem increased the yield of the stems to 14.96 t/ha, and the yield of total fiber to 4.56 t/ha. The maximum seed yield (on average 1.0 t/ha) was obtained when sowing with a seeding rate of 2.0 million/ha, with the addition of non-root top dressing, the yield increased by 6.7–23.6%.
Бакулова et al. (Sun,) studied this question.