Application of licorice-wolfberry-based carbon quantum dots in crop leaf fertilizer

The invention relates to the technical field of agricultural production, and discloses a preparation method of liquorice-wolfberry-based carbon quantum dots and application of the liquorice-wolfberry-based carbon quantum dots in improvement of salt tolerance of crops when the liquorice-wolfberry-based carbon quantum dots are used as leaf fertilizers. The liquorice-medlar-based carbon quantum dots are synthesized by taking medlar and liquorice as main raw materials through a one-pot hydrothermal method, the synthesis method is simple, the synthesized solution can be used after being simply separated or filtered, and after the liquorice-medlar-based carbon quantum dots are used for fertilizing the surfaces of crop leaves, the liquorice-medlar-based carbon quantum dots can be used for preparing the liquorice-medlar-based carbon quantum dots. The fresh weight and SPAD value of crop seeds under salt stress can be effectively improved. 本发明涉及农业生产技术领域，公开了甘草-枸杞基碳量子点的制备方法及其在作为叶面肥时提高作物耐盐能力的应用。本发明以枸杞和甘草为主要原料，通过一锅水热法合成甘草-