不同施肥处理对风沙土及柳枝稷生长的影响  

Effects of Different Fertilization Treatments on Aeolian Sandy Soil and Growth of Switchgrass

作　　者：李懿轩 杨航 李强 艾锋[1] 赵江 张凯煜 LI Yixuan;YANG Hang;LI Qiang;AI Feng;ZHAO Jiang;ZHANG Kaiyu(Key Laboratory of Ecological Restoration in Shaanxi North Mining Area,Yulin University,Yulin,Shaanxi 719000,China;Yulin Solid Waste Resource Utilization Engineering Technology Research Center,Yulin University,Yulin,Shaanxi 719000,China)

机构地区：[1]榆林学院,陕西省陕北矿区生态修复重点实验室,陕西榆林719000 [2]榆林学院,榆林市固废资源化利用工程技术研究中心,陕西榆林719000

出　　处：《陕西农业科学》2024年第7期91-97,共7页Shaanxi Journal of Agricultural Sciences

基　　金：陕西省教育厅服务地方专项(SXJYT-30);陕西省特支计划人才项目(2022TZRC04)。

摘　　要：研究以柳枝稷为指示作物,在田间小区种植,实验设置了CK(空白对照)、生物菌肥(ET1)、赛众土壤调理剂(ET2)、自研土壤调理剂(ET3)四个处理,通过施用不同的土壤调理剂,探讨不同土壤调理剂对柳枝稷生长性状及风沙地土壤理化性质的影响,为该地区柳枝稷科学合理的栽培及风沙土改良提供理论依据。结果表明:(1)施用不同的土壤调理剂可以改善风沙土的物理性质。相比之下,ET1、ET2和ET3的土壤含水率均有提升,容重7月、8月和9月分别下降10.12%、4.38%和6.49%。(2)施用不同的土壤调理剂可以改善风沙土的化学性质。实验各项处理中的有机质均有提高,碱解氮的含量增加,处理ET3较ET1和ET2速效磷的含量分别增加了7.37%和37.8%。(3)施用不同的土壤调理剂能显著增加柳枝稷的株高、生物量和叶面积。In this experiment,switchgrass was used as the indicator crop and planted in the field plot.The treatments included CK(blank control),biological fertilizer(ET1),Saizhong soil conditioner(ET2),and self-developed soil conditioner(ET3).This study explored the effects of these soil conditioners on the growth characteristics of switchgrass and the physicochemical properties of aeolian sandy soil.The aim is to provide a theoretical basis for the scientific cultivation of switchgrass and the improvement of aeolian sandy soils in this region.The results showed that:(1)Different soil conditioners improved the physical properties of aeolian sandy soil.ET1,ET2,and ET3 increased moisture content and decreased the bulk density by 10.12%,4.38%,and 6.49% in July,August,and September,respectively.(2)Organic matter and alkalihydrolyzable nitrogen content increased across treatments;available phosphorus in ET3 increased by 7.37% and 37.8% compared with ET1 and ET2.(3)Soil conditioners significantly increased the plant height,biomass,and leaf area of switchgrass.

关 键 词：柳枝稷 风沙土 有机肥 生长性状 理化性状 

分 类 号：X705[环境科学与工程—环境工程]