改性磷石膏对小白菜生长及根区土壤理化特性的影响  

Effects of modified phosphogypsum on growth of Chinese cabbage and soil physicochemical properties in root zone

作　　者：王要芳 英俊飞 曾明志 刘娟 张乃明 卢维宏[2,3] 韩云昌 WANG Yaofang;JIA Junfei;ZENG Mingzhi;LIU Juan;ZHANG Naiming;LU Weihong;HAN Yunchang(School of Biological and Food Engineering,Suzhou University,Suzhou 234000,China;School of Enwironment and Surveying Engineering,Suzhou University,Suzhou 234000,China;Yunnan Soil Fertilizer and Pollution Restoration Engineering Research Center,Kunming 650201,China;College of Resources and Environment,Yunnan Agricultural University,Kunming 650201,China)

机构地区：[1]宿州学院生物与食品工程学院,安徽宿州234000 [2]宿州学院环境与测绘工程学院,安徽宿州234000 [3]云南省土壤培肥与污染修复工程研究中心,云南昆明650201 [4]云南农业大学资源与环境学院,云南昆明650201

出　　处：《生态产业科学与磷氟工程》2025年第3期107-113,共7页Eco-industry Science & Phosphorus Fluorine Engineering

基　　金：宿州学院博士启动项目基金(2021BSK047);宿州学院大学生创新创业训练计划项目(YBXM23-197)。

摘　　要：开展5种不同改性磷石膏施用水平对小白菜生长发育、养分吸收利用效应和根区土壤理化特性的影响。结果表明:从生长指标和养分吸收利用效应来看,以0.3%改性磷石膏处理的效果最好,与对照CK相比,株高、SPAD值、根长、生物量分别增加80.6%、34.2%、37.5%、505.3%,小白菜植株中全氮、全磷、全钾质量分数分别增加211.3%、100.0%、69.6%;从根区土壤理化特性指标来看,以4.8%改性磷石膏的效果最佳,土壤pH、全磷、速效磷、碱解氮指标增幅分别达到了33.5%、29.7%、95.5%、43.8%,速效钾降低11.0%。改性磷石膏可调控酸性土壤pH,优化土壤中养分的有效性、提高养分吸收利用效率,进而促进小白菜的生长发育,以0.3%施用量时效果整体最为稳定。The effects of 5 different concentrations of modified phosphogypsum on growth of Chinese cabbage,nutrient absorption and utilization,soil physicochemical properties in root zone are investigated.The results show that 0.3% modified phosphogypsum treatment has the best effect on growth of Chinese cabbage and nutrient absorption and utilization,compared with CK,plant height,SPAD value,root length and biomass are increased by 80.6%,34.2%,37.5% and 505.3%respectively;And the contents of total nitrogen,total phosphorus and total potassium in Chinese cabbage plants are increased by 211.3%,100.0% and 69.6%respectively.In terms of soil physicochemical properties in root zone,4.8% modified phosphogypsum has the best effect,the soil pH,total phosphorus,available phosphorus and alkali-hydrolyzed nitrogen are increased by 33.5%,29.7%,95.5% and 43.8% respectively,and available potassium is decreased by 11.0%.Modified phosphogypsum can improve the pH value of acidic soil,optimize the availability,increase absorption and utilization efficiency of nutrients in soil,and then promote the growth of Chinese cabbage,especially the effect of 0.3% modified phosphogypsum treatment is the most stable.

关 键 词：改性磷石膏 小白菜 生长 根区土壤理化特性 

分 类 号：S634.3[农业科学—蔬菜学] S156[农业科学—园艺学]