Platycodon grandiflorus is one of the major development medicinal materials in Shangluo city,in the base of testing of land capability;according to fertilizer need law of Platycodon grandiflorus,fertilizing tests were conducted in base of medicinal material resources in Shangzhou,Shaanxi.Five treatments were designed in experimental,the results showed:the treatment of organic manure (1500kg)+N (15kg)+P2O5 (15kg)+K2O(15kg)+human manure and rine(2000kg)+spraying leaf fertilizer in rapid growth stage+ spraying...