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畜禽养殖业是农村经济的主要产业之一,它的快速发展带来的环境污染问题成为现在新农村建设的主要制约因素。分析养殖场粪污在还田模式下的氨排放途径,并针对途径总结了一些减排措施,结合我国养殖业发展和农田利用情况,总结出对于还田模式下减少氨排放,应从饲养动物开始,采取喂以低蛋白饲料,减少粪便中的氮含量;粪污经固液分离后采用密闭覆盖的方式进行储存,减少氨的挥发;还田时在春天对土地进行深耕施肥,减少氨排放,若表面施肥,需及时覆土或翻耕。
Livestock and poultry farming is one of the major industries in the rural economy. The environmental pollution brought about by its rapid development has become the main constraint to the new rural construction. Analyze the ways of ammonia emission in farmland manure in the mode of returning farmland, and summarize some measures of emission reduction according to the ways. Combining with the development of livestock industry and the utilization of farmland in our country, it is concluded that for the reduction of ammonia emission in the mode of returning farmland, , To feed low protein feed to reduce the nitrogen content in manure; manure after solid-liquid separation by confined coverage of storage, reduce ammonia volatilization; in the spring when the field of deep plowing fertilizer to reduce ammonia emissions, If the surface fertilization, timely soil or tillage.