期刊论文

中文

湖南农业大学学报(自然科学版)

1007-1032

2009

35

1

28-32

10.13331/j.cnki.jhau.2009.01.004

国家科技支撑计划(2007BAD87B11)； 湖南省科学技术厅重点项目(2006NK2001)；

本校为第一机构

研究了酒糟型生物有机肥酵解过程中几种水溶物含量的变化.结果表明,pH值呈先下降后上升的趋势,变幅在6～9.添加不同外源微生物菌剂对堆体pH值的影响差异不显著.电导率(EC)呈先上升后下降的变化趋势,在整个酵解过程中EC值均小于4.0 ms/cm.腐殖酸OD_(465 nm)/OD_(665 nm)(E4/E6)值前期增大,后期呈动态变化,堆制结束时维持在2.06～2.14.水溶性铵态氮(NH_4~--N)含量呈先上升后下降的趋势,水溶性硝态氮(NO_3~--N)含量呈上升趋势,堆制结束时NH_4~--N、NO_3~--N含量比为0.91左右.水溶性碳(WSC)含量呈先上升后下降的趋势,水溶性氮(WSN)含量呈下降趋势,WSC、WSN含量比呈先上升后下降的趋势,到堆制结束时变...

Content variations of water solubles in the process of degradation of brewer＇s spent grains-based bio-organic fertilizer has been studied in. The results showed that pH was showing a tendency, rise first and then decrease, within the range of 6-9; EC rose first then decreased with its value being less than 4.0 ms/cm in the whole process; E4/E6 appeared to be upward first, then maintained dynamic changes, with its value at 2.06-2.14 at the terminal of the composting; NH4^＋-N rose first then decreased, NO3^--N showed an upward trend, the rate o...