Research Progress on Seed Pelletization Technology at Home and Abroad
Seed pelletization belongs to the category of seed coating technology,which is characterized by using the principle of layered coating to wrap the pelletized powder on the surface of the seed,making the appearance of the seed similar to that of a sphere.The powder material wrapped outside the pelletized seeds is composed of filling powder and adhesive,which have richer functions and components compared to other types of coated seeds.Moreover,the volume of pelletized seeds increases,the fluidity is enhanced,and it is more conducive to mechanical seeding.This article first provided a detailed description of the application research status of pelletizing technology from the perspectives of technical principles and methods,including seed protection and germination,pest control and stress resistance,precision sowing,and its impact on crop growth.Then,it elaborated on the pelletizing powder prepared,including the selection of powder materials,formula ratios,additive components and functions.Then,from a process perspective,it introduced the processing equipment developed based on the principles of rotation and airflow pelletizing,as well as their advantages and disadvantages.It introduced the gap and progress achieved in the field of mechanical research and development at home and abroad,briefly describes the patents and technical standards issued in the field of seed pelletizing in China,and finally the deficiencies in the research on seed pelleting technology in China were mentioned,and the suggestions for the development of this field were put forward at the same time.
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