Fertilizer cap seal is a type of cap or lid used to seal fertilizer packaging containers. Its primary role is to avoid fertilizer leakage & moisture, so as to guarantee the quality of fertilizer, promote fertilization effect & safety. Prevent fertilizer from leaking and polluting the environment while in transit or storage. To prevent the fertilizer from getting wet and agglomerating, affecting the fertilization effect. Prevent Air & Moisture For Longer Shelve Life Of Fertilizer Fertilizer packages are done with proper sealing to promote the convenience of transporting and storing, improving the efficiency of logistics. Prevent fertilizer from polluting soil and water sources, ecological environment protection.