Which flushing fertilizers are commonly used in vegetables?

Which flushing fertilizers are commonly used in vegetables? What should you pay attention to when using it? Experienced netizens are also invited to help introduce the use of flushing fertilization in the process of growing vegetables, which can quickly and effectively provide nutrients for vegetables to promote the early listing of vegetables, so the farming network has sorted out the common flushing fertilization and matters needing attention for vegetables. The following list is for netizens' reference. 1. Quick-acting fertilizers: the commonly used available fertilizers for vegetables are urea, ammonium nitrate, potassium nitrate, potassium dihydrogen phosphate, potassium sulfate, potassium chloride and so on. This kind of fertilizer has strong water solubility and can be directly dissolved into water when watering. Second, compound fertilizer: the commonly used compound fertilizers for vegetables are diammonium phosphate, potassium chloride compound fertilizer, ammonium phosphorus potassium compound fertilizer and so on. The water solubility of this kind of fertilizer is relatively poor, and there are often a lot of residue on the ground after fertilization. generally, it is required to soak the fertilizer into the water 3 days before fertilization, so that the effective components of the fertilizer can be fully dissolved into the water, and the supernatant is poured into the ground with water during fertilization. Third, organic fertilizer: the organic manure commonly used in vegetable flushing fertilization is mainly manure, pig urine and chicken manure, cake fertilizer with relatively high content of available components. When flushing fertilizer, the organic fertilizer will be fully retted 15 days in advance, and the supernatant will be washed into the ground with water when watering. Ammonia in organic fertilizer is easy to volatilize, causing "ammonia poisoning" of vegetables, so the concentration of fertilizer solution is not too high, and it is suitable for light color and light taste. What is the selection method of water-soluble fertilizer? How to use it?