Abstract: The quality of rapid composting of kitchen waste and its effect on seed germination of Hordeum vulgare var. coeleste Linnaeus were analyzed in the study to solve the problem of difficult disposal of kitchen waste in Tibet. The results showed that the microbial treatment could effectively improve the composting temperature of kitchen waste. After 12 days of fermentation, the composting temperature reached the peak, which was 65.5 ℃, and then the composting temperature began to decrease, but it was still significantly higher than the control until the end of composting （P<0.05）; microbial agent treatment effectively realized the transformation of organic matter and total nitrogen in compost, and there was a significant difference between treatments on March 22 and April 4 （P<0.05）; the C/N of compost treated with the bacterial agent was always in a downward trend, at the end of composting, the C/N was 21.16, and the seed germination index of H. vulgare var. coeleste Linnaeus was 86.11%, which met the requirements of composting quality. In addition, the correlation between temperature and nutrient indexes showed that temperature had a highly significant negative correlation with organic matter and C/N （P<0.01）, and a highly significant positive correlation with total nitrogen （P<0.01）, indicating that temperature was the main factor affecting nutrient index. The nutrient indexes of composting with the bacterial agent could fully meet the requirements of composting quality, while the changes of nutrient indexes and seed germination index of H. vulgare var. coeleste Linnaeus in the control group were not obvious before and after the experiment. Therefore, bacterial agent treatment can effectively solve the problem of rapid fermentation for kitchen waste.

Key words: kitchen waste, rapid fermentation, composting, Hordeum vulgare var. coeleste Linnaeus, plateau area