Abstract: Liquid fertilizer has many advantages, such as easy to be absorbed by crop roots, less pollution to the environment, flexible formulation and convenient application. It is a new type of fertilizer developed rapidly in China in recent years. The development status of liquid fertilization machinery at home and abroad was analyzed. The structure and working principle of several main liquid fertilizer applicators were summarized. The application status of liquid fertilizer applicators in China was discussed. The corresponding countermeasures and suggestions were put forward to promote the rapid development of resource-saving and environment-friendly agricultural industry.

Key words: liquid fertilizer, fertilizer applicate machinery, intelligent agriculture