Abstract
A comparative assessment of the productivity of long fiber flax varieties was made, the level of influence of various microfertilizers with the content of biologically active substances on plant survival, the main indicators of crop structure and its quality were determined. It is established that the use of complex microfertilizers and plant growth and growth stimulants vitazim (1.0 l/ha), ecoline amino growth (2.0 l/ha) and spectrum ascorist (3.0 l/ha) in the technology of flax growing in the soil and climatic conditions of the Western Forest-Steppe zone of Ukraina contributes to the prolongation of the growing season by 2-4 days, obtaining a significant increase in yield. The highest seed yield was obtained in the variety Miandr with the use of foliar stimulator of plant growth vitazim (1.0 l/ha) on the background of nutrition N30R60K90 – 0.84 t/ha (on control – 0.78 t/ha). Seed yield in Miandr variety exceeded that of Oberig by 0.04 t/ha. The use of the growth stimulant vitazim (1.0 l/ha) foliarly on the long flax variety Miander ensured the highest conditionally net profit of UAH 9,477 hrn / ha at a profitability level of 74.7%.
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