山东农业大学学报（自然科学版）2025，Vol.56Issue(5)：890-898,9.DOI:10.3969/j.issn.1000-2324.2025.05.018
磷矿粉和糠醛渣不同配比对沥青拌合站回收粉性状及黑麦草生长的影响
Different Ratios of Phosphate Rock Powder and Furfural Residue on the Properties of Recycled Powder from Asphalt Mixing Plants and the Growth of Ryegrass
摘要
Abstract
To investigate the effects of different mixing ratios of phosphate rock powder(PRP)and furfural residue(FR)on the improvement of recycled powder from asphalt mixing plants(RPAMP)for use as landscaping soil,as well as to determine the optimal mixing ratio,this study conducts a ryegrass pot experiment.It examines the effects of 12 proportion treatments with PRP and FR accounting for 10%,15%,20%and 1%,3%,5%,10%of the recycled powder(RP)dry weight,respectively,as well as one control treatment with no additives,on the RP nutrients,enzyme activities and ryegrass growth performance.The results show that compared with the control treatment without any additives,all treatments with different ratios of PRP and FR significantly reduce the RP pH,with the maximum decrease of 9.85%,thereby improving RP nutrient status.These treatments also enhance the activities of urease,sucrase,catalase and phosphatase in RP during the vigorous growth stage of ryegrass,with an average increase of 63.66%.Additionally,they promote the fresh weight of ryegrass plants,the number of root tips,total root length,root diameter,total root surface area and total root volume of ryegrass,with increases of 47.04%,57.98%,57.97%,2.25%,68.13%and 87.61%on average,respectively.According to the comprehensive score of principal components,the three ratio treatments of 10%,15%and 20%PRP combined with 1%FR all have significant improvement effects in enhancing the nutrients and enzyme activities of RP and the growth of ryegrass.Therefore,under the experimental conditions of this study,the optimal material ratio for amending recycled asphalt mixture into soil suitable for landscaping is 10%PRP combined with 1%FR.关键词
沥青拌合站回收粉/磷矿粉/糠醛渣/黑麦草/改良效应Key words
Recycled powder from asphalt mixing plants(RPAMP)/phosphate rock powder(PRP)/furfural residue(FR)/ryegrass/improvement effect分类
农业科技引用本文复制引用
李佳明,万里,张海峰,王庆良,苏毅,宁国强,宋付朋..磷矿粉和糠醛渣不同配比对沥青拌合站回收粉性状及黑麦草生长的影响[J].山东农业大学学报（自然科学版）,2025,56(5):890-898,9.基金项目
沥青拌合站回收粉农林业资源化利用关键技术研发与应用(2022-LDSYS-001) （2022-LDSYS-001）
