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以鸡粪和稻草为试验材料,采用条垛式堆肥方式进行高温堆肥。设置了初始C/N为20、25、30、35、40、45六个处理,系统研究堆肥初始C/N比对堆肥发酵效果。结果表明:(1)堆肥初始C/N在20～40范围内,含水率在65%条件下,堆肥温度在堆制第2天均升至55℃以上并持续3天以上,符合高温快速堆肥发酵的卫生标准。(2)C/N在20～35之间的堆肥总腐殖酸含量呈先降低后升高的变化规律,并且堆肥总腐殖酸含量较高,其中C/N为30总腐殖酸含量最高。(3)堆肥初始C/N在20～35之间发酵效果较好,其中最佳C/N为30。
With chicken manure and straw as test materials, using stacker compost method for high temperature composting. The initial C / N was set at 20, 25, 30, 35, 40 and 45, and the effect of compost initial C / N ratio on compost fermentation was systematically studied. The results showed that: (1) Under the conditions of initial C / N of 20-40 and moisture content of 65%, the compost temperature rose above 55 ℃ for more than 3 days on the second day of compost, Fermented health standards. (2) The total humic acid content of composting between 20 and 35 was firstly decreased and then increased, and the total humic acid content of compost was higher, of which C / N was 30% of total humic acid content highest. (3) The initial C / N of composting was better than 20 ~ 35, of which the optimum C / N was 30.