堆肥原位保氮技术研究进展

Research Progress on Reducing Nitrogen Loss from Compost system

畜禽粪便等有机固体废弃物高温堆肥化过程中的氮素损失已经越来越受到国内外学者的关注。阐述了堆肥化过程及其过程中氮素损失的途径和特点,介绍了国内外堆肥原位保氮技术研究的进展。堆肥化过程中重要参数包括pH、值通风、含水率、仓内温度、有机质含量、颗粒度、C/N和C/P等。介绍了堆肥添加剂种类(高碳物质、外源微生物、物理性吸附剂和化学材料等),并展望了今后添加剂研究的重点和热点,如综合利用几种方法,开发新的脲酶抑制剂及硝化抑制剂等。

More and more attentions have been paid to nitrogen loss from high temperature compost system of organic solid wastes such as animal manure, and so on. This article exoatiates on the way and characters of nitrogen loss and thereafter introduced several kinds for reducing nitrogen loss. And, this article introduced the eseareh progress on nitrogen conservation from compost system at primary places. Physical, chemical and microbial ways consist of Nitrogen conservation steps. Integration of several ways, appending urease inhibitors and nitrification inhibitors would be researchful hotspots in further.