By systematically studying the physical parameters and rheological properties of straw, exploring the mechanisms of factors affecting the preparation of biobased materials, establishing the basic theory of straw preparation of agricultural biobased materials, and breaking through the key technology and process of hot pressing of straw based seedling pots. Research on the quantitative supply technology of raw materials, the uniform dispersion technology of powder in the mold, the precise positioning technology of dry hot pressing molds, the module assembly technology of the whole machine, and the logic control technology between precision feeding, dry hot forming, demolding and other processes. The integrated development of straw based seedling bowl forming machine has achieved fully automatic production of precision feeding, forming, exhaust, pressure holding and demolding, realizing equipment integration innovation. Explore the degradation reaction laws and mechanisms of straw based seedling pots, determine the molding formula, degradation cycle, and plant growth cycle relationship, and overcome the key technology of controllable decay and decomposition of straw seedling pots that meet the needs of plant seedling growth cycle. The straw based seedling pot has good biodegradability and strong mechanical properties in the early stage of seedling cultivation. After being transplanted into the soil, its air permeability, nutrient retention, and root permeability are good. At the same time, it gradually begins to rot and decompose. After the plant grows to a certain stage, the cultivation container gradually rots until it is completely decomposed, making it environmentally friendly.