Journal of Hunan Ecological Science

Crop straw returning is one of the effective measures to improve the comprehensive utiliza- tion rate of straw, achieve soil nutrient return and sustainable utilization, and has become an important measure for sustainable agriculture and ecological protection. However, straw contains a large number of macromolecular components such as cellulose, hemicellulose, and lignin, which are slowly decomposed into soil. Therefore, screening straw-degrading bacteria to accelerate the process of straw humification has become the key to straw degradation. At present, there are many studies on the screening of cellulose-de- grading bacteria, but there are few studies on the screening and application of stress-resistant cellulose- degrading bacteria. China has a vast territory, and the climate in different regions is complex and di- verse. The application of the most efficient degrading bacteria in different regions needs further study. In this paper, the types of straw microbial degrading bacteria and the application research progress of straw degrading bacteria under adversity conditions were reviewed, in order to provide an effective basis for straw returning, cost saving, fertilizer conservation and efficiency improvement under adversity conditions in China.

straw returning; microbial degradation bacteria; cellulose; cellulase