NOVELTY - Feeding disposable nitrogen and applying fertilizer comprises preparation of base fertilizer and fertilizer application. Organic fertilizer decomposed cake fertilizer, decomposed pig manure, inorganic fertilizer potassium nitrate, flue-cured tobacco special compound fertilizer comprising nitrogen (13%), phosphate (P2O5) (9%) and potassium oxide (K2O) (14%), and calcium superphosphate are prepared into base fertilizer. The base fertilizer is uniformly applied in small holes near the flue-cured tobacco when flue-cured tobacco is transplanted.    USE - Method for feeding disposable nitrogen and applying fertilizer (claimed).    ADVANTAGE - The flue-cured tobacco nitrogen fertilizer utilization rate is increased by 30-70%. The flue-cured tobacco nitrogen agronomic use efficiency is increased by 63-176%.    DETAILED DESCRIPTION - Feeding disposable nitrogen and applying fertilizer comprises preparation of base fertilizer and fertilizer application. Organic fertilizer decomposed cake fertilizer, decomposed pig manure, inorganic fertilizer potassium nitrate, flue-cured tobacco special compound fertilizer comprising nitrogen (13%), phosphate (P2O5) (9%) and potassium oxide (K2O) (14%), and calcium superphosphate are prepared into base fertilizer. The base fertilizer is uniformly applied in small holes near the flue-cured tobacco when flue-cured tobacco is transplanted. The flue-cured tobacco is transplanted by mode of transplanting under film and flue-cured tobacco ridges are covered by double-color plastic film. During breeding period of flue-cured tobacco, tobacco ridge ditches are required to be connected with water discharging ditches. The average ridge height is 35-40 cm. The total quantity of nitrogen in the organic fertilizer is 55-65 mass% of total quantity of nitrogen in base fertilizer and rest is total quantity of nitrogen in inorganic fertilizer. The nitrogen in the form of cake fertilizer accounts for 40-45% and rest is nitrogen in the form of pig manure. The total quantity of the nitrogen in inorganic fertilizer is reduced by 45-55% according to the total quantity of nitrogen in local base fertilizer and top-applied inorganic fertilizer. The nitrogen in the form of potassium nitrate accounts for 55-63%, and the rest is the nitrogen in the form of flue-cured tobacco special 13-9-14 compound fertilizer. The tobacco leaves completely cover tobacco ridge striking, tobacco-growing and fertilizer applying parts in root elongation and rosette stages of flue-cured tobacco. Water dropping lines on peripheries of flue-cured tobaccos are outside the base fertilizer hole-applying parts. The film is peeled off to slightly put soil in. By using potassium sulfate, first top application is carried out and after flue-cured tobacco is transplanted for 40-45 days, large earth-up and second top applications are carried out. After topping, third top application is carried out and the inorganic fertilizers used by second and third top applications and applying quantities and fertilizing methods are as same as those of first top application.