Foliar fertilizer for increasing peanut yield

The invention relates to the field of agricultural fertilizers, in particular to a foliar fertilizer for increasing peanut yield. The foliar fertilizer is prepared from the following components: 100 mL of water, 3.0-10.0 g of polyglutamic acid, 0.1-1.0 g of ferric chloride, 0.15-1.5 g of manganese sulfate, 0.15-3.5 g of magnesium sulfate, 0.2-1.2 g of calcium chloride, 0.5-5.0 g of dipotassium hydrogen phosphate, and 0.15-4.0 g of zinc sulfate. The foliar fertilizer can not only effectively supplement major elements, nitrogen, phosphorus and potassium, required for peanut growth, but also supplement microelements, iron, manganese and zinc, required for growth. Without special requirements for peanut varieties, the peanut yield can be increased by 30% in the situation of not changing the present situation of peanut production, cultivation mode and production conditions. The foliar fertilizer has the advantages of simple components, low cost and obvious effect, and can be widely appliedto peanut production. 本发明