CAJ | 학술논문

采用开放式和封闭式2种方式进行蚕沙堆沤，测定了堆沤过程中蚕沙各理化指标（含水率、温度、pH、有机碳、氮、磷、钾、腐殖酸以及发芽指数）的动态变化．结果表明：50 d的堆沤进程中，封闭式堆沤发酵温度低、发酵速度慢，各时期理化指标变化平稳；开放式堆沤经历2次升温期，第1次温度高（50℃以上持续9 d），第2次温度低，温度对各个时期理化指标的波动造成较大影响；蚕沙经过20 d的开放式堆沤可基本达到有机肥的技术标准，蚕沙有机碳质量分数为352.41 g/kg，w（C）/w（N）为11.01，总养分（N＋P2O5＋K2O）质量分数为81.2 g/kg， pH 7.14，发芽指数＞50％．
채용개방식화봉폐식2충방식진행잠사퇴구，측정료퇴구과정중잠사각이화지표（함수솔、온도、pH、유궤탄、담、린、갑、부식산이급발아지수）적동태변화．결과표명：50 d적퇴구진정중，봉폐식퇴구발효온도저、발효속도만，각시기이화지표변화평은；개방식퇴구경력2차승온기，제1차온도고（50℃이상지속9 d），제2차온도저，온도대각개시기이화지표적파동조성교대영향；잠사경과20 d적개방식퇴구가기본체도유궤비적기술표준，잠사유궤탄질량분수위352.41 g/kg，w（C）/w（N）위11.01，총양분（N＋P2O5＋K2O）질량분수위81.2 g/kg， pH 7.14，발아지수＞50％．
Changes of partial physical and chemical indexes , including moisture percentage , temperature , pH, organic carbon, nitrogen, phosphorus, potassium, humus acid, germination index of silkworm ex-crement composted in open stockpile and close stockpile during different periods , were studied .The re-sults showed that when the fermentation temperature was low , fermentaion rate was slow , but physical and chemical index were stable in close stockpile while there were two heating up periods in open stockpile , the first high temperature was 50℃for 9 d, the second with low temperature , which created great effects on physical and chemical indexes .It basically reached the technical standards of organic fertilizer after 20 d open compost .The content of organic carbon in silkworm paeces dropping ran up to 352.41 g/kg, w(C)/w(N) being 11.01, the total nutrient content (N+P2O5 +K2O) being 81.2 g/kg, pH being 7.14 , germination index surpassing 50%.