【摘要】 为探讨蔬菜废弃物水热处理产物对小白菜生长的影响,对蔬菜废弃物进行高温水热处理,将得到的固态和液态产物作为土壤改良剂,进行为期35 d的小白菜幼苗生长试验。结果表明:210℃水热固态产物改良土壤中(简称S210B),小白菜长势较好,与CK相比,其产量、株高、茎围、根长分别增加了42.82%、18.18%、13.21%和82.61%。土壤中添加稀释30倍的210℃水热液态产物(简称Y210(30))后,小白菜的长势更佳,且氮、磷、钾养分含量分别高出CK 12.16%、26.42%和37.46%。2种处理的根际土壤中主要细菌群落在门水平上的变化趋势较为相似,优势菌群为厚壁菌门和变形杆菌门。综上,蔬菜废弃物水热产物作为有机肥具有一定的应用价值。更多还原

【Abstract】 To investigate the effects of hydrothermal treatment products of vegetable waste on the growth of Chinese cabbage, vegetable waste had been subjected to high-temperature hydrothermal treatment, and the solid and liquid products obtained had been used as soil amendments for a 35-days experiment with Chinese cabbage seedlings. The results showed that the Chinese cabbage grown in the soil amended with the solid hydrothermal product at 210 ℃(S210B) had better growth, with an increase of 42.82% in yield, 18.18% in plant height, 13.21% in stem diameter, and 82.61% in root length compared with the control. The Chinese cabbage grown in the soil amended with the liquid hydrothermal product at 210 ℃ diluted 30 times(Y210(30)) had even better growth, with higher nitrogen, phosphorus, and potassium nutrient contents than the control by 12.16%, 26.42% and 37.46%, respectively. The trends in the changes of the dominant bacterial communities at the phylum level in the rhizosphere soil of the two treatments were similar, with the dominant bacterial community being the Firmicutes and the Proteobacteria. In conclusion, the hydrothermal products of vegetable waste as organic fertilizers had certain application value.更多还原