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。 In order to clarify the effect of different storage methods and time on the nutrient content of straw biogas slurry, two methods were set up, such as open temperature and closed storage. The contents of N, P and K in the biogas slurry at different storage time were determined. The results showed that during the storage of biogas slurry, the content of organic matter changed little before and after storage, and the total amount of N, P and K decreased obviously. When stored for 50 days, the N, P and K declined by 80% -90% In the closed storage of biogas slurry N, P, K less reduced, so from the straw biogas fertilizer, the closed storage is better than the open storage.