摘要
在正交预备试验得出有机废弃物分解产生CO2 适宜条件的基础上 ,逐一进行单因子试验 ,以获得利用农业废弃物分解产生的CO2 进行棚室栽培CO2 施肥的最适发酵条件 .结果表明 ,利用有机废弃物(稻草 +猪粪 )生物发酵产生CO2 的最佳条件分别为 :温度 5 0℃、含水量 70 %、初始 pH 6 0～ 7 0 .初始C/N比因发酵目的不同有较大变化 ,以堆肥为目的时为 30 / 1,而以产生CO2 为目的时 ,则以 4 0 / 1为宜 .在 4个因素中 ,初始C/N比和含水量对CO2 释放的影响较大 ,其次是温度 ,初始
On the basis of a preliminary orthogonal design experiment,from which,the primary parameters suitable for the CO 2 evolution from bio-degradation of agricultural organic wastes had been obtained,four single factor experiments were installed in greenhouse to seek the optimal parameters for the CO 2 evolution.The results showed that the optimal parameters for the CO 2 evolution from the bio-degradation of rice straw-pig manure mixture were 50 ℃,70% water content and initial pH 6.0～7.0.For fermentation,the optimal initial C/N ratio of substrate for cumulative CO 2 evolution was 40/1,but 30/1 was better for compost.The effect of the four parameters on CO 2 evolution was in the order of C/N ratio and water content>temperature>pH.
出处
《应用生态学报》
CAS
CSCD
2004年第3期501-505,共5页
Chinese Journal of Applied Ecology
基金
国家重点基础研究发展规划项目 ( 2 0 0 2CB410 80 6)
浙江省自然科学基金资助项目 ( 2 3 0 3 465 )
