Taking edible sunflower varieties (Longshikui 2) as materials ,the effects of different nitrogen ,phos‐phorus and potassium fertilizer handling major agronomic traits ,economic traits ,quality traits and yield on edi‐ble sunflower were studied to provide abasis for edible sunflower efficient fertilization .The results showed that the appropriate nitrogen ,phosphorus and potassium could improve the height ,leaf number ,stem diameter ,di‐ameter of sunflower disc and other agronomic traits of sunflower plant .Appropriate nitrogen ,phosphorus and potassium could also improve the eaible sunflower kernel weight ,seed rate and yield ,sunflower seeds kernels with the increasing of fertilizer amount .Appropriate nitrogen ,phosphorus and potassium could effectively im‐prove the edible sunflower crude fat and protein quality traits .Fertilizer of N 90 kg·hm‐2 ,P2 O5 45 kg·hm‐2 , K2 O 100 kg·hm‐2 ,the yield sunflower seeds ,quality ,economic benefit were best .With the increasing of nitro‐gen ,phosphorus and potash fertilizer ,the main agronomic traits of sunflower ,economic traits ,quality traits and yield increased ,but with the excessive application of fertilizers traits had reduced ,rational fertilization could ef‐fectively improve the economic benefits of planting edible sunflower .%以食用向日葵品种（龙食葵2号）为供试材料，研究了不同氮、磷、钾肥施用处理对食用向日葵主要农艺性状、经济性状、品质性状及产量的影响，以期为食用向日葵高效施肥提供依据。结果表明：适当增施氮、磷、钾肥能有效提高食用向日葵的株高、茎粗、叶片数、花盘直径等农艺性状。适当的氮、磷、钾肥能有效提高食用向日葵的百粒重、结实率和产量，向日葵子仁率则随着施肥量的增加而增加。适当的氮、磷、钾肥能有效提高食用向日葵粗脂肪和粗蛋白等品质性状。施肥量为N 90 kg·hm‐2、P2 O545 kg·hm‐2、K2 O 100 kg·hm‐2时，向日葵籽实的产量最高、品质最佳、经济效益最高。随着氮、磷、钾肥施用量的增加，向日葵的主要农艺性状、经济性状、品质性状、产量等也随之升高，但随着肥料的过度施用各性状有不同程度的降低，合理施肥能够有效提高种植食用向日葵的经济效益。
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