Effects of Different Fermentation Treatments on the Physical and Chemical Characteristics of Corn Straw

[Objective] In order to enhance the utilization efficiency of straw,widen utilization space of straw,corn straw fermentation process was explored fundamentally. [Method] In this study corn straw was decomposed by three different treatments for effects of different fermentation time on physicochemical properties of corn straw. [Result]The results showed that,adding some chicken manure or yeast as fermentation materials,can significantly increase the bulk density and change porosity. Treatment 2 and 3 in the physical properties,EC,PH and buffer capacity was not significantly difference. Adding fermentative accessory,the proportion of N,P,K and C changed. But the treatment 2 and treatment 3 on thirty-fifth days of fermentation,showed the same effect. [Conclusion]To a certain extent,with the same addition of yeast and chicken manure on physicochemical properties of corn straw fermentation,yeast helped fermentation of corn straw.