摘要
为了明确不同储存方式和时间对秸秆沼液养分含量的影响,设置常温敞口和密闭储存2种方式,对不同储存时间的秸秆沼液中N、P、K及有机质含量进行了测定。结果表明：在沼液储存过程中有机质含量储存前后变化幅度较小,N、P、K总量明显降低,储存到50天时,N、P、K降幅达到80%~90%;2种储存方式中,密闭储存的沼液N、P、K降低少,因此从秸秆沼液肥用而言,密闭储存优于敞口储存。
To study the effects of different storage methods and time on content of nutrients in biogas slurry of straw, two storage methods were carried out on biogas slurry between open storage and airtight storage conditions at normal atmospheric temperature. The content of N, P, K, and organic matter in biogas slurry of straw were determined in different storage time. The results showed that： during the process of biogas slurry storage, little change occurred in the content of the organic matter while the total content of N, P, K was significantly declined; up to 50 days, the total content of N, P, K reduced to nearly 80%-90%; Because the content of N, P, K in biogas slurry reduced less in airtight storage conditions so that a better result was found on airtight storage methods than open storage methods in fertilizer field of biogas slurry of straw.
出处
《中国农学通报》
CSCD
2014年第17期200-203,共4页
Chinese Agricultural Science Bulletin
基金
"十二五"国家科技支撑课题"北方村镇(山东)环境综合整治与废弃物循环利用技术研究与示范"(2012BAJ21B04-04)
山东省环境瓶颈解析项目"农村生活污水与生活垃圾处理处置及资源化利用技术
管理模式研究与示范"(SDHBPJ-ZB-05)
关键词
秸秆沼液
储存方法
时间
养分含量
biogas slurry of straw
storage method
time
content of nutrients
