College of Resources and Environmental Science, Yunnan Agricultural University, Kunming 650201, China.
College of Resources and Environmental Science, Yunnan Agricultural University, Kunming 650201, China.
Bioresour Technol. 2019 Dec;293:122075. doi: 10.1016/j.biortech.2019.122075. Epub 2019 Aug 28.
To enhance the humification process, Phanerochaete chrysosporium (P. chrysosporium) was inoculated during different fermentation phases of the co-composting of maize straw and canola residue. The humification process was determined by evaluating cellulose and lignin contents and key enzyme activities during composting. Results showed that the cellulose and lignin degradation efficiency and humification degree of compost were significantly enhanced in the treatment that inoculated P. chrysosporium in the cooling period (T2). At the end of composting, compared with that in T1 (no inoculation), the content of cellulose and lignin in T2 decreased significantly by 40.00% and 64.30%, respectively, and compared with that in T1 and T3 (inoculation in the initial stage of composting) the content of humus in T2 increased significantly by 55.40% and 75.20%, respectively. This study confirms that inoculating P. chrysosporium during the cooling period promoted the degradation of cellulose and lignin, and therefore enhanced the compost humification.
为了增强腐殖化过程，在玉米秸秆和油菜残渣共堆肥的不同发酵阶段接种黄孢原毛平革菌（Phanerochaete chrysosporium，P. chrysosporium）。通过评估堆肥过程中纤维素和木质素含量以及关键酶活性来确定腐殖化过程。结果表明，在冷却期（T2）接种 P. chrysosporium 的处理中，纤维素和木质素的降解效率以及腐殖化程度显著提高。在堆肥结束时，与 T1（未接种）相比，T2 中纤维素和木质素的含量分别显著下降了 40.00%和 64.30%，与 T1 和 T3（在堆肥初期接种）相比，T2 中腐殖质的含量分别显著增加了 55.40%和 75.20%。本研究证实，在冷却期接种 P. chrysosporium 可促进纤维素和木质素的降解，从而增强堆肥腐殖化。
