不同C/N物料腐解过程中两种酚酸量的动态变化  

Variation Two Phenolic Acids in Decomposing Organic Materials with Different C/N Ratios

作　　者：彭宇 朱林[2] 袁飞[3] 张春兰[3] 沈其荣[3] 

机构地区：[1]长沙卷烟厂科研所,湖南长沙410014 [2]安徽农业大学资源环境学院,安徽合肥230061 [3]南京农业大学资源环境学院,江苏南京210095

出　　处：《湖南农业大学学报（自然科学版）》2004年第6期555-557,共3页Journal of Hunan Agricultural University(Natural Sciences)

基　　金：国家自然科学基金重点资助项目(39830220)

摘　　要：为进一步探明有机物料影响作物生长的作用机理,运用高效液相色谱研究了稻草、猪粪等物料腐解过程中水杨酸和对羟基苯甲酸量的动态变化.结果表明,这些物料本身均含有一定量的水杨酸和对羟基苯甲酸,两种酚酸的量随物料C/N的增加而减少;在腐解过程中两种酚酸量的动态变化规律相似,0～10d迅速下降,再逐渐回升,并在20 d或30 d达到高峰值,然后又下降直至最后趋于稳定.两种酚酸量的变化速率与物料C/N呈负相关.To examine the effects of organic materials on better growth of crops,variation of salicylic acid and ρ-hydroxybenzoic acid during decomposition of pig manure and rice straw was studied by HPLC.The results show that organic materials contain salicylic acid and ρ-hydroxybenzoic acid. The content of ρ-hydroxybenzoic acid was five to six times higher than that of salicylic acid.The content of two phenolic acids contained in materials with different C/N ratios was: Z>S>L>D.Two phenolic acids significantly decreased within 10 days of decomposition, reached the maximum after 20~30 days,and reached a stable and minimum stage after 40~50 days.

关 键 词：猪粪 稻草 碳氮比 水杨酸 对羟基苯甲酸 

分 类 号：S141[农业科学—肥料学]