Potassium Fulvic Acid are extracted from natural plants, which contain high content of fulvic acid and rich in bioactivity ， is brown powder with an excellent solubility. It is soluble in water, fertilizers and pesticide spray solutions easily. Mainly used for wheat, corn, sweet potatoes, millet, rice, cotton, peanuts, rapeseed, tobacco, sericulture, fruits, vegetables and so on.