A study on improving the nutrition of engineering waste soil by fermented sugarcane bagasse through different bacteria and fungi
This study explores a new way to reuse engineering waste soil by investigating the effect of different bacteria and fungi on fermenting sugarcane bagasse to improve the nutrition of engineering waste soil.Four different bacteria and fungi were selected as fermentation agents,and the engineering waste soil mixed with sugarcane bagasse was fermented for 7 days,14 days and 21 days,respectively,in order to observe the fermentation phenomena,detect the content of organic matter,hydrolyzable nitrogen,effective phosphorus and quick-acting potassium.Then the bacteria or fungi with the best fermentation efficiency was determined.It is found that after 14 days of fermentation with yeast,the content of organic matter reached the required standard.The content of hydrolyzable nitrogen increased by 294％as compared with the initial state.The content of effective phosphorus slightly decreased as compared with the initial state,but still reached the required standard.The content of quick-acting potassium increased by 119％as compared with the initial state.The fermentation efficiency of yeast was better than the other groups.Overall,sugarcane bagasse fermented by bacteria or fungi can improve the nutrition of engineering waste soil with low economic cost,carbon emission and environmental pollution,especially for yeast which can effectively improve the content of organic matter,hydrolyzable nitrogen and quick-acting potassium.
万方数据
维普
