西米废弃物(Metroxylon sagu)堆肥及产生的腐植酸的化学特性

Chemical Characteristics of Compost and Huimic Acid from Sago Waste(Metroxylon Sagu)

农业废弃物,如西米废弃物对土壤和水体的污染存在潜在威胁。为了减轻这一问题,本研究对3种不同处理的西米来源的废弃物的堆肥和西米来源的腐植酸的化学性质进行了研究。在大小为61.5×49×33.5cm的白色聚苯乙烯盒子里堆置60d,通过pH、总氮、有机碳、有机质、灰分、阳离子置换能力、磷、腐植酸等指标对其进行分析。所有处理都没有达到高温阶段。与处理T1、T3相比,处理T2(pH、总氮、有机碳、有机质、灰分、阳离子置换能力、磷、腐植酸)质量更好。T2的腐植酸产量也明显比其他两组高。T1和T3的堆肥特性相似。3种处理中的腐植酸化学特性在其他研究者报道的标准范围之内。与处理T1、T3相比,在60d里,T2处理更能有效地生产成熟、高质量的堆肥。

Problem statement：Agriculture waste such as Sago Waste（SW） has a potential to cause pollution either on land or in water.In order to reduce this problem,a study was conducted to investigate the effect of three different treatments on the chemical characteristics of compost and humic acid from SW.Composting was done for 60 days in a white polystyrene box with a size of 61.5×49×33.5 cm.The composts were analyzed for pH,total nitrogen,organic carbon,organic matter,ash,Cation Exchange Capacity（CEC）,phosphorus and HA using standard procedures.Results：All treatments did not reach thermophilic phase.Compost of T2 had high quality（pH,totalnitrogen,organic carbon,organic matter,ash,Cation Exchange Capacity,Phosphorus and HA） compared to T1 and T3.The yield of humic acid of T2 was also significantly higher compared to those of T1 and T3.The compost characteristics of T1 and T3 WERE SIMILAR.The chemical characteristics of HA the 3 treatments were within the standard range reported by other researchers.Conclusion：T2 is more efficient in producing mature and good quality compost in 60 days compared to T1 and T3.