耕作与栽培2025，Vol.45Issue(3)：38-44,7.
生物炭与有机肥对土壤酶活性、养分及向日葵产量的影响
Effects of Biochar and Organic Fertilizer on Soil Enzyme Activities,Nutrients and Yield of Sunflower
摘要
Abstract
To investigate the effects of combined application of biochar and organic fertilizer on soil biochemical properties and sunflower yield,five treatments were established,control(ck,no fertilizer and biochar appli-cation),conventional fertilization(CF),conventional fertilization plus biochar(CFC),30%organic fertilizer substitution for chemical fertilizer plus biochar(MFC)and 50%organic fertilizer substitution for chemical fertilizer plus biochar(OFC).Soil enzyme activities,nutrient content and sunflower yield were systematically determined across these treatments.Significant increases in soil urease activity were indicated by the results,with increases of 66.78%and 22.15%during the seedling stage,51.71%and 50.03%during the flowering stage and 35.05%and 85.33%during the maturity stage,respectively,when compared to the control(ck),for CF and CFC treatments.Higher soil invertase activity was observed during the flowering and maturity sta-ges in the MFC treatment,with increases of 1.63 times and 1.10 times,respectively,compared to the ck.Soil alkaline phosphatase activity was significantly enhanced by treatments CFC,MFC and OFC,with increases of 52.04%,49.93%and 40.23%during the flowering stage and 49.39%,104.39%and 99.70%during the maturity stage,respectively,compared to the ck.No significant differences in soil catalase activity were found among the treatments.The highest soil available nitrogen,available phosphorus,available potassium content and sunflower yield were achieved with the MFC treatment,with values of 66.76 mg/kg,11.13 mg/kg,172.75 mg/kg,and 3 362.26 kg/hm2,respectively,while the OFC treatment resulted in the highest soil organic matter content at 10.66 g/kg.No significant differences in soil pH were observed among the treat-ments.Significant correlations were found to exist between soil nutrients,enzyme activities and yield.It was recommended that the MFC treatment be adopted as the appropriate model for sunflower production in the Hetao Irrigation Area.关键词
生物炭/有机肥/土壤酶活性/土壤养分/向日葵产量Key words
biochar/organic manure/soil enzyme activity/soil nutrient/sunflower yield分类
农业科技引用本文复制引用
杨旸,赖黎明,王靖,高乐乐..生物炭与有机肥对土壤酶活性、养分及向日葵产量的影响[J].耕作与栽培,2025,45(3):38-44,7.基金项目
内蒙古自治区高等学校科学研究项目(NJZY22256) （NJZY22256）
河套学院科学技术研究项目(HYZQ202118) （HYZQ202118）
内蒙古自治区自然科学基金项目(2023MS03045) （2023MS03045）
