Abstract:
The seed germination index (GI) serves as the principal determinant that impedes the integration of aerobic composting products into agricultural lands. The current research work predominantly focuses on exploring the correlation between physical and chemical indicators of the compost products and GI, neglecting the fundamental cause. This study systematically analyzed the composition of GI aqueous extracts from compost products derived from kitchen waste under various composting methodologies, with nitrogen, carbon, and inorganic salt as critical factors. The analytical work concluded that acetic acid, formic acid, and ammonium were the inhibitory factors influencing GI. Validation experiments introduced inhibitory factors, yielding a functional relationship formula depicting GI variations due to a single influential factor. This study conclusively identified acetic acid as the primary constraint, establishing that its inhibitory concentration corresponded to 70 % GI stands at 85 mg/L. This study will provide guidelines for the future research on enhancing aerobic composting techniques.
摘要:
种子发芽指数(GI)是阻碍好氧堆肥产品整合到农田中的主要决定因素。当前的研究工作主要集中在探索堆肥产品的理化指标与GI之间的相关性。忽视了根本原因。这项研究系统地分析了在各种堆肥方法下,来自厨余垃圾的堆肥产品的GI水提物的组成,氮气,碳,和无机盐作为关键因素。分析工作得出结论,乙酸,甲酸,铵是影响胃肠道的抑制因子。验证实验引入了抑制因子,产生描述由于单个影响因素引起的GI变化的函数关系公式。这项研究最终确定乙酸是主要的制约因素,确定其抑制浓度对应于85mg/L的70%GI。本研究将为今后强化好氧堆肥技术的研究提供指导。