Foliar fertilizer for improving crisp pear quality and application method thereof

The invention discloses foliar fertilizer for improving crisp pear quality and an application method thereof. The pear foliar fertilizer is prepared from arginine, proline, lysine, glycine, glutamic acid, leucine, zinc, manganese, copper, iron, threonine, asparaginic acid, alanine and phenylalanine, wherein arginine and proline have a promoting effect on pear growth development; lysine, glycine, glutamic acid, leucine, the zinc, the manganese, the copper and the iron have a promoting effect on pear photosynthesis; threonine, asparaginic acid, alanine and phenylalanine have a promoting effect on pear stress resistance. The application method of the pear foliar fertilizer comprises the steps: mixing with water to dilute the pear foliar fertilizer spraying 2 to 4 times in a fruit expanding period, spraying to the front and back sides of leaves when no wind, no rain and no burning sun and spraying until the leaves are wet in each spraying. When the fertilizer disclosed by the invention isused, pear photosynthesis