Changes Rule of Nutrients During the Resource Utilization of Pig Manure Under High Temperature Enzymatic Hydrolysis with Neu-tral Protease
Based on enzyme engineering and enzyme kinetics as the technical support and scientific basis,the combination of pig manure and corn stover was used as the substrate,2％neutral protease was added,and the water content of the substrate was reduced to 56.01％at 80℃ for 3 h in a biochemical reactor,a year-on-year decrease of 2.34％.The content of macromolecular organic matter was reduced to 63.79％,and after enzymatic hydrolysis,the organic content of substrates treated A and B reached 14.19％and 15.06％,respectively.The use of a large number of elements in plants had been increased to 6.87％,which met the NY 525-2012 organic fertilizer standard.Available-available phosphorus,avail-able potassium,total salt and total humic acid showed a downward trend.The mortality rate of roundworm eggs reached 92％,and the seed ger-mination index reached 54％,which reached the standard of organic fertilizer rot.
Pig manureNeutral proteaseHigh temperature enzymatic hydrolysisOrganic fertilizerNutrientChange rule
万方数据
维普
