Study On The Conditions And Effect Of Wheat Stalks Compost Inoculated The White Ror-fungi

As other agricultural organic castoffs, the wheat stalks are one of the reproducible resources. But because of the limitation of technology, there are so much straws being setted on fire or thrown away. We are trying our best to search a way to full use of the superfluous straws. Compost using wheat stalks is a good pattern to deal with the superfluous straws. But it is the long time of composting that limits the use of the technique.Wheat stalks are mostly composted of cellulose ,hemi-cellulose and lignin. The lignin is the primary obstacle that restrains the straws from being biodegraded.. We inoculated white rot-fungi (Trametes Versicolor) to biodegrade the lignin so that the barrier can be broken down-In this paper, the elements that effect the white rot-fungi to biodegrade the straws lignin were studied. These elements were C/N,C/P, the proportion of wheat stalks to water and the content of pig dung. The results showed that the optimum conditions of white rot-fungi to biodegrade the wheat stalks were: C/N=60,C/P=120,the proportion of wheat stalks to water is 2 , the content of pig dung is 10% and the temperature is 30癈. In these conditions, the wheat stalks lignin can be degraded 56.27% in 16 days and.the cellulose and hemi cellulose had a little degradation. After 16 days of cultivatation , the laccase enzyme active begun to reduce and the rate of biodegradation also to reduce. So 16 days were the best period of using the white rut-fungi to deal with wheat stalks.At ordinary conditions that were described in this paper, we use the wheat stalks that were treated with the white rot-fungi to compost. The results showed that the straws decayed in 16 days.