不同改良物料对桃园土壤酸化的改良效果

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中图分类号：S662.1 文献标志码：A 文章编号：1002－2910（2025）06-0043-04

Improvement effects of dfferent amendment materials on soil acidification in peach orchards

SHENJingyi，WANGChenglian，XUJinyi，LUChao （1.ComprehensiveerviceCenterofYangshanTown，Wuxi，Jangsu4o，China;2.WuxiAgricultural TechnologyExtensionCenter，Wuxi，Jiangsu2140o0，China）

Abstract：To provide a technical basis for ameliorating soil acidification in peach orchards and increasing the yieldand qualityof honey peaches，biochar，silicon-calcium-potassium-magnesium fertilizer（SCPM），limestone，and a nitrification inhibitor （DCD） were applied to improve acidified soil ina peach orchard.The effects of different materials on the soil chemical properties，fruit quality，and yield were studied.Theresultsshowed thatall 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 SCPMeffectively 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， andfructose in honey peaches，whilereducing 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.

Key words： peach orchard; soil acidification; amendment materials; quality; soil nutrients

1.2试验设计

水蜜桃是江苏省无锡市的著名特产之一，主要产于中国著名桃乡无锡市阳山镇，已有近70年的栽培历史。（剩余4736字）