Which fertilizers cannot be applied by flushing? Fertilization taboos every grower must know
Flush fertilization is widely used on greenhouse and open-field vegetables, mainly for topdressing during the vigorous growth period of vegetables. But not all fertilizers can be applied by flushing; only water-soluble fertilizers can be applied by flushing with water. For nitrogen fertilizers, urea, ammonia water, ammonium sulfate and ammonium nitrate are commonly used; for potassium fertilizers, potassium chloride and potassium sulfate are commonly used, and potassium nitrate can also be used for flush...

Flush fertilization is widely used on greenhouse and open-field vegetables, mainly for topdressing during the vigorous growth period of vegetables. But not all fertilizers can be applied by flushing; only water-soluble fertilizers can be applied by flushing with water. For nitrogen fertilizers, urea, ammonia water, ammonium sulfate and ammonium nitrate are commonly used; for potassium fertilizers, potassium chloride and potassium sulfate are commonly used, and potassium nitrate can also be used for flush application. However, phosphate fertilizers, granular compound fertilizers, solid organic fertilizers and microbial fertilizers cannot be applied by flushing.