Scientific foundations of the influence of mineral fertilizer norms on the stage of development of various phenophases of aromatic varieties of tobacco such as Virginia

The article explores the impact of cultivation on various phases of the field after transplanting seedlings of Virginia tobacco in the Sheki-Zagatala region, depending on cultivation techniques. The research work was carried out in 4 repetitions from an area of 28 m2 on the territory of the Sheki Refuge Point according to the following scheme: I. Irrigation norm-70 - 80 - 50% НВ; 70 - 80 - 60% НВ; 70 - 70 -60% НВ. II. Nutrition condition-N30P90K90; N45P120 + 20 tons of manure; N60P150K120. III. Food area-120 × 40 cm; 110 × 40 сm; 90 × 40 сm. The overall analysis carried out to determine the productivity was calculated based on the dry weight of the leaves in the air and the base humidity. After drying the wet leaf product, at the drying point in special chambers, at a temperature set from 600C to 700C, the mass of the dry leaf was weighed on a technical scale. It can be said that the yield of dry leaves obtained by different processing methods had a comparable effect between the variants. Thus, the highest yield against the background of N45P120 + 20 tons of manure on a feeding area of 120×40 cm at an irrigation rate of 70-80-50% 21.1 c/ha, at an irrigation rate of 70-80-60% 23.8 c/ha, at an irrigation rate of 70-70-60% 26.7 с/ha; on the feeding area of 110×40 cm at an irrigation rate of 70-80-50% 27.4 c/ha, at an irrigation rate of 70-80-60% 27.4 c/ha, at an irrigation rate of 70-70-60% 27, 0 с/ha; on a feeding area of 90×40 cm at an irrigation rate of 70-80-50% 28.8 c/ha, at an irrigation rate of 70-80-60 29.2 c/ha, at an irrigation rate of 70-70-60% 27.8 c/ha.