摘要
采用培养试验方法研究了不同有机肥氮素在淹水条件下的矿化特征及其与有机肥化学组成的关系,指出有机肥氮素矿化累积量与有效积温的关系可用 y=(x)/(a+bx)来描述,堆肥、牛粪和羊粪的氮素释放始速较小而较恒定,铵态氮释放极限量小,而猪粪、鸡粪和饼肥则相反.肥料纤维素含量及热水溶性化合物的C/N 强烈地影响着有机肥氮素的释放规律.
The incubation method was used to study the characteristics of mineralization of nitrogen inorganic manure under waterlogged condition and its relation to chemical composition of organic manure.The results obtained showed that the relationship between the accumulated amounts of mineralized nitrogeninorganic manure and the effective accumulated temperature could be discribed by y=(?).The rates ofnitrogen mineralization at the beginning were small but somewhat constant in compost,cow manure,andsheep manure,but the reverse was true for pig manure,chicken manure,and cake manure.The character-istics of mineralization of nitrogen in organic manure were greatly affected by the content of cellulose and theC/N ratio of compound solubilized in hot water in organic manure.
出处
《南京农业大学学报》
CAS
CSCD
北大核心
1992年第1期59-64,共6页
Journal of Nanjing Agricultural University
关键词
淹水培养
矿化特征
有机肥
氮素
waterlogged incubation
characteristics of mineralization
nitrogen
organic manure
