新疆农业大学学报2025，Vol.47Issue(3)：241-246,6.DOI:10.20088/j.cnki.jxau.2025.03.010
枣核粉末生物炭及其磷酸改性对盐碱土改良的影响
Effects of Jujube Kernel Powder,Biochar,and Phosphoric Acid Modification on the Amelioration of Saline-Alkali Soil
摘要
Abstract
To explore the improvement effects of applying jujube-pit powder biochar and its phosphoric acid modification on saline-alkali soil,Fourier Transform Infrared Spectroscopy(FTIR)and Scanning Elec-tron Microscopy(SEM)were employed to analyze the structure and morphology of the biochar.A pot ex-periment with Chinese cabbage was conducted,featuring six treatment groups:a control group,groups treated with jujube-pit powder that had passed through a 2 mm sieve,jujube-pit biochar,and phosphoric acid-modified jujube-pit biochar at mass concentrations of 0.1 g/L,0.3 g/L,and 0.5 g/L.The application rate for all treatments was set at 5%of the soil weight.Three days after biochar application,Chinese cabbage was planted,and harvested 28 days later.Subsequently,soil physicochemical properties and the biomass of Chinese cab-bage were measured.The results showed that compared with the control group,the jujube-pit powder treatment significantly decreased the soil pH value by 2.20%(P<0.05),significantly increased the elec-trical conductivity by 23.16%(P<0.05),and significantly improved the organic matter and available po-tassium contents by 34.37%and 19.64%,respectively(P<0.05).Compared with the control group,ju-jube-pit biochar significantly increased the available potassium and organic matter contents by 18.90%and 31.51%,respectively(P<0.05).Compared with the control group,the application of 0.5 g/L phos-phoric acid-modified jujube-pit biochar significantly increased the soil organic matter and available phos-phorus contents by 45.15%and 85.78%,respectively(P<0.05).Additionally,0.5 g/L phosphoric acid-modified jujube-pit biochar significantly increased the biomass of pak-choi by 58.33%(P<0.05),fol-lowed by jujube-pit powder.In contrast,the separate addition of jujube-pit biochar significantly decreased the biomass of pak-choi by 50.00%(P<0.05).Overall,the application of jujube-pit powder,jujube-pit biochar,and phosphoric acid-modified jujube-pit biochar improved the physicochemical properties and structure of saline-alkali soil.关键词
枣核生物炭/改性/盐碱土Key words
jujube pit biochar/modification/saline-alkali soil分类
农业科技引用本文复制引用
王策,努尔模达·达拉拜,贾宏涛,寇天乐,李梦瑶,李抗非,程俞华,张迅..枣核粉末生物炭及其磷酸改性对盐碱土改良的影响[J].新疆农业大学学报,2025,47(3):241-246,6.基金项目
甘肃省自然科学基金项目(21JR7RA466) （21JR7RA466）
兰州大学战略发展专项项目(lzujbky-2021-sp55) （lzujbky-2021-sp55）
