中文摘要：

堆肥过程中的氮素损失及其控制正引起国内外越来越多学者的关注。本文利用氯化铁、过磷酸钙及其混合物按不同比例添加到堆肥原始物料中，进行高温好氧堆肥化控制氮素损失研究。结果表明，添加固定剂的堆肥处理，其铵态氮、硝态氮含量都有不同程度的增加，堆肥产品总氮含量也显著提高，氮素固定效果较好，并且随着固定剂添加量的增加，氮素固定率升高，最高达85％，降低了堆肥化过程中的氮素损失，说明这3种固定剂适合作为堆肥过程中的氮素损失固定剂；通过对比混合添加和单独添加的固氮效果，结果发现在本试验条件下，氯化铁和过磷酸钙混合添加的固氮效果与单独添加的相比要略差。

英文摘要：

Nitrogen loss usually occurs during composting of wastes. This paper studied the reducing of nitrogen loss with different preportions of FeCl3 or Ca（H2PO4）2· H2O or mixture of FeCl3 and Ca（H2PO4）2·H2O as control materials during composting. The results showed that the content of ammonium-N, nitrite-N and total N in the compost increased to some extent under the treatment with fixing agents, and the effect of nitrogen loss controlling was significant. The rate of nitrogen fixation increased with the increase of the additives, being up to 85%. All of the additives can be used as the adsorbent of ammonia, and the effect of nitrogen fixation of adding FeCl3 and Ca（H2PO4）2·H2O solely was better than adding the mixture of FeCl3 and Ca（H2PO4）2·H2O.