华南农业大学学报Issue(4)：598-601,4.
不同堆沤方式对蚕沙部分理化指标动态变化的影响
Effects of Different Stockpile Methods on Dynamic Changes of Partial Physical and Chemical Indexes of Silkworm Excrement
摘要
Abstract
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%.关键词
蚕沙/堆沤/理化指标Key words
silkworm excrement/compost/physical and chemical index分类
农业科技引用本文复制引用
陈芳艳,钟杨生,李文楚,王叶元,马冲,林健荣..不同堆沤方式对蚕沙部分理化指标动态变化的影响[J].华南农业大学学报,2013,(4):598-601,4.基金项目
现代农业产业技术体系建设专项 （）
