挖掘有机肥源,扩大有机肥品种是肥料研究的重要任务之一。我们在黄淮海地区工作期间,对河南省封丘县糠醛厂生产的工业有机废弃物——糠醛渣在农业中的利用进行了初步研究。目的是为了更好地利用这一资源,为农业生产服务。糠醛渣是应用玉米芯加粗硫酸制作糠醛时所产出的废渣。该厂年产约5000—7500吨,因它含有少量游离酸,所以有较强的酸性,其pH值约为2—3,并含有一些其它成分(如表1)。再加上糠醛渣本身质地松软,具有一定的吸附能力,有利于土壤改良和作 Digging organic fertilizer sources, expanding organic fertilizer varieties is one of the important tasks of research. During our work in Huang-Huai-Hai region, the utilization of furfural residue in agriculture, an industrial organic waste produced by furfural plant in Fengqiu County, Henan Province, was studied. The purpose is to make better use of this resource to serve agricultural production. Furfural residue is the use of corn cob crude furfural production of waste residue. The plant produces around 5000-7500 tonnes per year, because it contains a small amount of free acid and is therefore more acidic and has a pH of about 2-3 with some other ingredients (Table 1). Coupled with furfural residue itself soft texture, has a certain adsorption capacity, is conducive to soil improvement and for