NOVELTY - Nitrogenous fertilizer comprises (A) fertilizer of nitrogen, phosphorus and potassium, and (B) raw material including (a) 30 wt.% rapeseed cake, (b) 14-17 wt.% humic acid, (c) 12 wt.% agricultural potassium nitrate, (d) 23.5 wt.% powdered monoammonium phosphate, (e) 1-4 wt.% potassium chloride, (f) 6 wt.% agricultural potassium sulfate, (g) 5-8 wt.% agricultural ammonium sulfate, (h) 0.75 wt.% magnesium sulfate heptahydrate, (i) 0.75 wt.% zinc sulfate heptahydrate, and (j) 1 wt.% nitrogen fertilizer synergist.    USE - The nitrogenous fertilizer is useful for tobacco (claimed).    ADVANTAGE - The fertilizer exhibits synergistic effect, increases yield, quality and production value of tobacco, and improves economic benefit and utilization ratio of tobacco.    DETAILED DESCRIPTION - Nitrogenous fertilizer comprises (A) fertilizer of nitrogen, phosphorus and potassium, where the total nutrient accounts for 27.5-28 wt.% base fertilizer, the total nutrient of nitrogen is 6.5-7 wt.%, the total nutrient of nitrogen in nitrate-nitrogen greater than or equal to 20 wt.%, and the total content of phosphorus, potassium and organic matter is 10 wt.%, 11 wt.% and greater than or equal to 15 wt.%, respectively, and (B) raw material including (a) 30 wt.% rapeseed cake, where the total nutrient of nitrogen-phosphorus-potassium and organic matter in the fermented rapeseed cake is greater than or equal to 8 wt.%, and greater than or equal to 70 wt.%, respectively, and the content of nitrogen, phosphorus pentoxide and potassium oxide in the fermented rapeseed cake is 5 wt.%, 1.8 wt.% and 1.2 wt.%, respectively, (b) 14-17 wt.% humic acid, (c) 12 wt.% agricultural potassium nitrate, (d) 23.5 wt.% powdered monoammonium phosphate having nutrient content of 55 wt.%, (e) 1-4 wt.% potassium chloride, (f) 6 wt.% agricultural potassium sulfate, (g) 5-8 wt.% agricultural ammonium sulfate, (h) 0.75 wt.% magnesium sulfate heptahydrate, (i) 0.75 wt.% zinc sulfate heptahydrate, and (j) 1 wt.% nitrogen fertilizer synergist, where the nitrogen fertilizer synergist contains 3 wt.% hydroquinone, 40 wt.% dicyandiamide, and 57 wt.% sepiolite.