What's the difference between compound fertilizer and mixed fertilizer?

What is the difference between compound fertilizer and blended fertilizer? Please introduce the difference between compound fertilizer and blended fertilizer. Please refer to the following introduction: Compound fertilizer is a chemical fertilizer made by chemical method or (and) mixed method containing any two or three of crop nutrient elements nitrogen, phosphorus and potassium. Its function is to meet the comprehensive needs and balance of various nutrients required by agriculture under different production conditions. Different from organic fertilizer, organic fertilizer is a kind of fertilizer made of natural organic matter decomposed or fermented by microorganisms. China is also known as farm manure. Its characteristics include: wide source of raw materials, large quantity; complete nutrients, low content; slow and long fertilizer efficiency, which can only be absorbed by plants after decomposition and transformation by microorganisms; good soil improvement and fertilization effect. Commonly used natural fertilizer varieties are green manure, human manure, manure, compost, compost, biogas fertilizer and waste fertilizer. Blended fertilizer, also known as BB fertilizer, dry mixed fertilizer, containing nitrogen, phosphorus, potassium three nutrients in any two or three kinds of fertilizer, is a unit fertilizer or compound fertilizer as raw materials, through simple mechanical mixing, in the mixing process without significant chemical reaction. Blended fertilizer production technology is simple, in the United States, blending operations and fertilization operations are carried out on the same day as far as possible, in which case the storage properties of the product do not need to be considered. In many countries, blended fertilizers also need to be packaged and stored for some time, so the storage performance of the product is very important. All raw materials should be dry, uniform in particle size and of high strength to prevent absorption of water, agglomeration and particle separation during storage and transport. Click for more compound fertilizer application techniques Click for more fertilizer application techniques