NOVELTY - Cultivation method involves transplanting tobacco in a uniform flat field at planting density of 16500-18000 plants/hm2, digging large holes at central positions of tobacco plants planted on a tobacco ridge, mixing various fertilizers and applying the mixed fertilizers in the large holes by calculating the fertilizer amount needed by each plant per hectare, mixing uniformly in the large holes sufficiently and sealing the large holes with soil and harvesting the matured leaves.    USE - The method is useful for cultivating tobacco seedlings chosen from 101, NC89, K326 and flue-cured tobacco (all claimed).    ADVANTAGE - The method optimizes the supply of mineral elements such as nitrogen, potassium, phosphorus and chlorine, facilitates root development and thickening of the tobacco plants, improves disease-resistant ability of tobaccos, promotes plant growth, avoids resource waste and environmental pollution due to blind fertilization, improves internal quality of tobacco leaves by increasing oil and potassium, enhancing aroma and reducing chlorine, starch and alkali which remarkably increases the economic indicators of the tobacco leaves and is cost-effective.    DETAILED DESCRIPTION - Cultivation method involves (a) selecting a uniform flat field having moderate soil fertility and preparing cultivation line for planting by double ditching and forming ridges; (b) conducting tobacco transplantation during the month of April to late May, at a planting density of 16500-18000 plants/hm2, before applying fertilizer; (c) digging large holes at central positions of tobacco plants, where each hole has a diameter of 35-45 cm and a depth of 25-35 cm, mixing various fertilizers and applying the mixed fertilizer in the large holes by calculating the fertilizer amount needed by each plant per hectare, where the fertilizer comprises 130-170 kg/hm2 sesame cake, 25-35 kg/hm2 ammonium nitrate, 25-35 kg/hm2 phosphorus nitrate, 65-75 kg/hm2 triple superphosphate, 180-200 kg/hm2 potassium sulfate, 40-80 kg/hm2 cooked sesame seeds, 20-40 kg/hm2 humic acid, 25-35 kg/hm2 zinc sulfate, 13-17 kg/hm2 boric acid, 25-35 kg/hm2 water retention agent, mixing uniformly in the large holes sufficiently and sealing the large holes with soil; and (d) carrying out other farm management practices and culture techniques and harvesting the matured tobacco.