摘要
为探讨不同有机废弃物作为栽培基质的可行性,对木薯渣、蚯蚓土、园林废弃物、椰糠、芦苇末、泥炭的理化性质、养分含量及发芽指数进行测试和分析。结果表明,蚯蚓土和木薯渣容重分别为0.67和0.47 g/cm^(3),显著高于其他材料;木薯渣、园林废弃物及泥炭的孔隙度较适宜,大小孔隙比在1∶2~1∶4;蚯蚓土的pH在8以上,呈碱性,其他材料为中性或偏酸性;电导率(EC)最高为木薯渣,EC值接近3 mS/cm,有机质及养分含量最高均为椰糠,含量分别达86.6%和12.8%;发芽指数较高的为木薯渣、泥炭和蚯蚓土,在60%~80%。通过隶属函数法对有机废弃物进行综合评价,评价值从高到低依次为椰糠>木薯渣>蚯蚓土>园林废弃物>泥炭>芦苇末,可作为筛选有机废弃物生产栽培基质的依据。
In order to explore the feasibility of different organic wastes as culture substrate,the physicochemical properties,nutrient contents and germination index of cassava residue,earthworm soil,garden waste,coconut husk,reed residue and peat were tested and analyzed.The result showed that the bulk density of earthworm soil and cassava residue was 0.67 and 0.47 g/cm~3 respectively,which were significantly higher than that of other materials.The porosity of cassava residue,garden waste and peat was suitable,with a pore ratio of 1∶2-1∶4.Earthworm soil was alkaline with a pH above 8,while other materials were neutral or slightly acidic.The electrical conductivity of cassava residue was the highest and the EC value was close to 3 mS/cm.The contents of organic matter and nutrient of coconut husk were both the highest,which were 86.6%and 12.8%respectively.The germination indexes of cassava residue,peat and earthworm soil were at a high level between 60%and 80%.The matrix materials were evaluated comprehensively by subordination function method,and the evaluation value from high to low was coconut husk>cassava residue>earthworm soil>garden waste>peat>reed residue,which could be used as the basis for selecting organic waste as cultivation substrate.
作者
康凯丽
王朴
梁玉婷
涂继红
KANG Kai-li;WANG Pu;LIANG Yu-ting(Wuhan Institute of Landscape Architecture,Wuhan,Hubei 430081)
出处
《安徽农业科学》
CAS
2022年第19期99-101,136,共4页
Journal of Anhui Agricultural Sciences
基金
武汉市园林和林业局科研项目(武园林发[2017]49号)。
关键词
有机废弃物
栽培基质
理化性状
养分含量
发芽指数
隶属函数法
Organic waste
Cultivation substrate
Physicochemical properties
Nutrient content
Germination index
Subordination function method