作　　者： ; ; ; ; ; ; (刘胜安）; (梁敏）;

机构地区： 华南农业大学动物科学学院动物营养与饲料科学系

出　　处： 《农业环境科学学报》 2003年第2期189-193,共5页

摘　　要： 摘要:通过2次室外中型堆肥试验,研究了在相同水分条件(68.8%),不同调理剂、不同碳氮比(C/N)、不同通气方式和不同添加剂对猪粪堆肥进程的影响,及各种指标在堆肥进程中的变化趋势,并提出了猪粪堆肥的腐熟指标。研究表明,固相C/N、NH+4-N含量、种子发芽率是较好地反映猪粪堆肥腐熟进程的生化指标,当固相C/N降至20∶1以下、NH+4-N含量小于20mg·kg-1、种子发芽率>70%时,可判定堆肥已腐熟。依据上述指标,并结合粪便无害化指标,可判定本研究中除第一次堆肥第一组、第二次堆肥第七组外,其余各组在第30～35d时已腐熟。 Two medium -scale composting experiments were carried out to study the e ffects of bulking agents,carbon -to-nitrogen ratio(C /N),aeration forms and additions on swi ne manure composting under moisture content of 68.8%.The changes of various indexes were also evaluated.The maturity evaluation indexes and standards of swine manure composting were put forward.The results obtained were as follows:The solid -state C /N ratio,NH 4+ -N content and the rate of seed germin ation were available to evaluate maturity of swine manure composting.The swine manure composting mature d when solid -state C /N ratio had decreased <20∶1,NH 4+ -N content was <20mg ·kg -1 ,and the rate of seed germination was>70%.In this study all treatments could reach their maturity and stabilization in 30to 35days except the treatment with rice hull and the swine manure alone treatment.

关 键 词： 猪粪 堆肥 腐熟指标 物理性状 温度变化

领　　域： [农业科学] [农业科学]