摘要
为了探讨醋糟发酵过程中氮素形态变化对pH值的影响,采用向堆体添加水分的两阶段条垛式堆肥发酵方法,测定了两个阶段堆体中总氮、氨氮、硝氮的质量分数及堆体温度、有机质、pH值。试验结果表明:堆肥完成后堆体总氮、氨氮、硝氮相对质量分数均有所上升,堆体pH值由最初的4.3上升至最高7.94,最后又回落至6.3左右,有机质质量分数由最初的91.8%下降到了83.2%,发芽指数GI达到102.3%。研究表明:经两阶段堆肥发酵,醋糟堆体已完全腐熟。
In order to investigate the effect of transformation of nitrogen on pH value in course of vinegar composting,two-stage water-filled windrow fermentation method compost experiment was carried out.The amounts of total nitrogen,ammonia nitrogen,nitrate nitrogen and the temperature,organic matter and pH value were measured orderly.Results showed that the amounts of total nitrogen,ammonia nitrogen,nitrate nitrogen increase in the relative content,and pH value mounted up from 4.3 to 7.94 and eventually returns to about 6.3,and the content of organic matter descended from 91.8% to 83.2%,and the germination index reached 102.3%.Results indicate that vinegar residue compost has been full maturity.
出处
《农业工程学报》
EI
CAS
CSCD
北大核心
2010年第7期255-259,共5页
Transactions of the Chinese Society of Agricultural Engineering
基金
国家农业科技成果转化资金(2008GB2C100106)
江苏省科技攻关重大项目(BE2006385)
镇江市农业科技攻关(NY2008037)
关键词
氮
pH
氮化合物
醋糟
条垛式堆肥
氮素迁移
发芽指数
nitrogen
pH
nitrogen compounds
vinegar residue
windrow composting
germination index（GI）
total nitrogen（TN）
