摘要
稻草经硝酸等处理液降解后,其纤维素含量和木质素含量均明显降低,处理液的作用效果依次为硝酸>乙酸>盐酸>氨水>草酸,其中以硝酸和乙酸的降解效果最为明显,与对照相比纤维素含量分别降低了65.96%和42.13%,木质素分别降低了82.20%和58.32%,腐植酸含量分别增加19.29%和17.23%,黄腐酸含量分别增加32.91%和22.89%;将提取的腐植酸用于水稻种子水培试验,与对照相比,苗长分别增加42.60%和32.66%,根长分别增加49.73%和34.0%,苗干重分别增加14.41%和16.14%,根干重分别增加41.32%和67.66%。
After Straw being degraded by disposal liquid such as HNO3 and so on, the content of cellulose and lignin is decreased obviously. Effect is HNO3 〉 CH3COOH 〉 HC1 〉 NH4OH 〉 C2H2O4. HNO3 and CH3COOH have the best effect on degrading straw which decreased cellulose content by 65.96% and 42.13%, lignin content by 19.29% and 17.23% respectively and increased HA content by 19.23% and 17.23%, FA content by 32.91% and 22.89% respectively when compared with CK. HA which were extracted by HN03 and CH3COOH were applied on experiments of rice seeds being fostered in water. Compared with CK, they increased seedling length by 42.60% and 32.66%, root length by 49.73% and 34.0%, dry weight of seedling by 14.41% and 16.14%, and dry weight of root by 41.32% and 67.66% respectively.
出处
《国土与自然资源研究》
2007年第2期92-93,共2页
Territory & Natural Resources Study
关键词
稻草
降解
腐植酸
黄腐酸
straw
degrade
humic acid
fumic acid
