应用微生物与秸秆降低鸡粪氨气释放量

为减轻大量禽畜废弃物中氨气流失对环境的污染,研究和优化了微生物与秸秆等辅料对氨气释放量的影响。结果表明,F468、M1?M9等除臭微生物能显著降低氨气的释放量,其中F468是最优微生物,其它微生物与F468的配伍并没有显著增强F468降低氨气释放量的能力,有些微生物还降低了其能力,因此选择单一微生物法降低氨气释放量。单独添加辅料对降低氨气的释放影响较小,辅料与微生物的配伍可大量降低氨气的释放量。5%的F468与10%的秸秆配伍在1?5 d降低88%的释放量。应用微生物与秸秆不仅降低氨气挥发对环境的危害,也是秸秆资源化利用的有效途径之一。

Decreasing ammonia emission from chicken manure by microbe and litter material

Some de-odorizing microbes and litter materials were combined to decrease ammonia emission from chicken manure and minimize its dangerous effect on environment.The de-odorizing microbes(F468,M1?M9) could significantly decrease ammonia emission from chicken manure and F468 was the optimal.The ability of F468 to decrease ammonia emission could not be improved significantly by mixture with other de-odorizing microbe(M1?M9),and some microbes hindered its ability,therefore the method of ap-plication of single microbe(F468) was preferred.Ammonia was not efficiently decreased by adding litter material such as wheat bran,wheat straw and cottonseed bran.Ammonia emission was abundantly decreased by mixing litter materials with F468,such as 88%(W/W) ammonia loss was retrieved within 0?5 d by add-ing 5%(W/W) F468 and 10%(W/W) wheat straw.In general,the application of de-odorizing microbe and straw to decrease ammonia emission from chicken manure not only minimized its dangerous effect on envi-ronment,but also represented an alternative practice of open air burning of straw.