摘要
Abstract
To provide a technical basis for ameliorating soil acidification in peach orchards and increasing the yield and quality of honey peaches,biochar,silicon-calcium-potassium-magnesium fertilizer(SCPM),limestone,and a nitrification inhibitor(DCD)were applied to improve acidified soil in a peach orchard.The effects of different materials on the soil chemical properties,fruit quality,and yield were studied.The results showed that all material treatments increased the soil pH compared to the conventional fertilization control,with the biochar treatment showing the best effect,increasing 0.45 units compared to the control.Biochar and SCPM effectively increased soil electrical conductivity,by 24.76％and 20.11％respectively,compared to the control.The DCD treatment increased soil NH4+-N content by 17.53％and decreased soil NO3--N content by 18.13％.Biochar and SCPM effectively increased the content of potassium,magnesium,and calcium ions.In terms of honey peach yield and quality,biochar and SCPM had the best effect on increasing sugar and reducing acid content,effectively increasing the content of sucrose,glucose,and fructose in honey peaches,while reducing the content of quinic acid,malic acid,and citric acid.The DCD treatment had the best effect on increasing single fruit weight,which was 10.33％higher than the control.Comprehensively considering the effects of ameliorating soil acidification and improving honey peach yield and quality,biochar and SCPM had the best overall effect on ameliorating soil acidification and improving honey peach quality.DCD demonstrated the ability to improve fertilizer utilization efficiency.关键词
桃园/土壤酸化/改良物料/品质/土壤养分Key words
peach orchard/soil acidification/amendment materials/quality/soil nutrients分类
农业科技
