Fertilizer caking is caused by the nature of its internal nitro fertilizer anti-caking agent, which is formed by the contact point of the particles. Caking produce very complex mechanism, there is no unified theory nitro complete fertilizer anti-caking agent products, crystal bridge theory, capillary adsorption theory, chemistry theory, the plastic deformation theory, film theory and the diffusion mechanism of nitro-fertilizer caking quality anti-caking agents, including crystal bridge theory and capillary adsorption theory is currently accepted theory. External anti-caking agent primarily encapsulated in the surface of the fertilizer particles, to form a protective film to prevent moisture absorption of the fertilizer particles. Nitro fertilizer manufacturers _ anti-caking agent Weifang Fuyuan (certified) _ Nitro fertilizer anti-caking agent is provided by Environmental Science and Technology Co., Ltd. Weifang Fuyuan. Weifang Fuyuan Environmental Protection Technology Co., Ltd. (www.wfdafuyuan.com) (www.wfdafuyuan.com) Shandong Weifang, the other leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Weifang Fuyuan leadership with the staff warmly welcome all inquiries negotiations to create Weifang Fuyuan a better future.