What are the common foliar fertilizers for vegetables?

What are the common foliar fertilizers for vegetables? Is there a netizen to help introduce that foliar fertilizer can quickly make nutrients enter into plants through leaves, and quickly solve the problem of lack of fertilizer and nutrients in vegetables, so it is widely welcomed by farmers, so the farming network has sorted out the commonly used foliar fertilizers for vegetables? the following is listed in detail for netizens' reference. First, leafy vegetables: (such as Chinese cabbage, Chinese cabbage, cabbage, celery, etc.) foliar spraying is mainly urea, with a concentration of 0.3%-0.5%, which can be sprayed with 0.3% rice vinegar solution. 2. Melons and fruits vegetables: (such as cucumbers, tomatoes, eggplants, peppers, kidney beans, beans, etc.) foliar spraying is mainly composed of nitrogen, phosphorus and potassium mixture or multi-component compound fertilizer, such as 0.2% Mel 0.3% potassium dihydrogen phosphate solution, 0.5% urea plus 2% superphosphate plus 0.3% potassium sulfate solution, 0.05% rare earth micro-fertilizer solution, etc. Third, onion and garlic, root vegetables, potato vegetables: (such as garlic, onion, radish, carrot, potato, etc.) foliar spraying is based on phosphorus and potassium fertilizer, such as 0.2% potassium dihydrogen phosphate solution, calcium superphosphate and plant ash extract. Fourth, according to the lack of trace elements in the soil, spraying trace element fertilizer. What are the advantages of foliar fertilizer? What are the methods of foliar fertilization