The commonly used potassium fertilizers for fruit tree production include potassium sulfate, potassium chloride, cellar ash potassium, and grass ash. Potassium sulphate contains 50% to 52% of active ingredient, which is a good potash suitable for all kinds of fruit trees. It can be used as base fertilizer and topdressing fertilizer. Potassium chloride active ingredient content is generally 50% to 60%, is a physiological acid fertilizer, can be used as base fertilizer, top dressing and top dressing. Potash potash is a by-product of the cement industry. Different cement manufacturers, potash ash potash potassium content is not the same, the content is low about 8%, high up to 20%. Potash ash potash also contains calcium, magnesium, sulfur, iron and other trace elements, and it is an alkaline potash that can be used as base fertilizer and top dressing. It is especially suitable for application in acidic and slightly acidic soils. Can not be mixed with ammonium nitrogen fertilizer, superphosphate, so as to avoid loss of ammonium nitrogen and reduce the effectiveness of phosphorus. Ash contains a variety of ash elements, such as potassium, calcium, magnesium, sulfur, iron, silicon and so on. Among them, potassium, calcium, phosphorus followed. Grass ash can be used as base fertilizer and top dressing. The best effect of application in early spring can not only meet the needs of growth and development of fruit trees, but also increase the temperature of the soil and promote root growth. The plant ash is alkaline and can not be mixed with ammonium nitrogen fertilizer to prevent evaporation of ammonia. Fruits And Vegetables,Fresh Fruits And Vegetables,Fresh Fruit And Veggies,Fresh Vegetables Xi'an Gawen Biotechnology Co., Ltd , https://www.agolyn-bio.com