Effects Of Different Conditioners And Composting Conditions On The Physicochemical Index Of Pig Manure

Composting is one of major ways to the harmless processing of livestock manure, however, due to the disadvantages of long fermentation period,ammonia volatilization was very easy during the composting processing, this Phenomenon not only caused environment pollution, but also decreased agricultural utilization value of the composting production. the study used pig manure as the research object and discussed the effects of different conditioners(HM,FeSO4,Attapulites) and composting conditions( C/N,water content and ventilation condition) on the physicochemical index of pig manure, this article aims at mastering the key technology of composting,shortening the time of fermentation,and then achieving the effect of nitrogen-conserving. The mainly results were as follows:1. All the conditioners could efficiently promote fermentation and shorten the fermentation time. During composting process, the organic carbon degradation efficiency sequence of four treatments was HM+FeSO4>HM inocula>HM+ palygorskite>CK; the increasing amount sequence of relatively total nitrogen was HM+FeSO4>HM+ Attapulites>HM inocula>CK;the increasing amount sequence of NO3--N was HM+FeSO4>HM+ palygorskite>HM inocula>CK. The C/N ratio respectively decreased from 25: 1 to 17.0:1,16.5:1,16.7:1 and 17.0:1.2,All the treatments had deodorant effect.,and the best one was palygorskite,secondly were HM+FeSO4 and HM inocula,then was CK.3,There was a larger differences of physical and chemical indicators under different C/N treatment, and the one that initial C / N for the 26 was beneficial to the composting.4,Different water content had a obviously impact on the compost decomposition process, As for the high content of organic corn stalks pig manure mixed aerobic composting, it suggested that 55% -65% of the initial moisture content was appropriate;5,Different methods of composting ventilation also had a clear impact on maturity. The method combination of composting mandatory and ventilation ventilation was more favorable than a single reactor in the gas exchange with the outside world.