西南农业学报2025，Vol.38Issue(8)：1606-1615,10.DOI:10.16213/j.cnki.scjas.2025.8.005
大颗粒活化腐植酸缓释肥在苹果上的应用
Application of large-particle activated humic acid slow-release fertilizer on apples
摘要
Abstract
[Objective]The present paper aimed to explore the effects of large-particle activated humic acid slow-release fertilizer on soil nutri-ents in apple orchards,as well as its impact on apple growth status,photosynthetic efficiency,yield and quality,providing a reference for the application of large-particle fertilizers in orchards.[Method]Four-year-old Red Fuji apple seedlings were used as the experimental materials.Eight different fertilization treatments were set up,with each treatment repeated eight times:100％application rate of large granular activated humic acid slow-release fertilizer(LAF1),80％application rate(LAF2),50％application rate(LAF3),100％application rate of pow-dered slow-release fertilizer(PAF1),80％application rate(PAF2),50％application rate(PAF3),common fertilizer(CCF),and non-fer-tilization treatment as the control(CK).Fruit and leaf samples were collected to measure leaf SPAD values,plant height and stem diameter,fruit quality(flesh firmness,fruit shape index,soluble sugar content,acidity),yield,and soil nutrients(nitrate nitrogen,ammonium nitrogen,available phosphorus,available potassium,organic matter).[Result]Compared with CCF,LAF1 and LAF2 could effectively increase soil nu-trient content and maintain soil fertility.Long-term application of large-particle activated humic acid slow-release fertilizer could significantly increase soil organic matter content.The soil organic matter content in each soil layer treated with LAF2 was increased by 17.47％,18.47％and 32.94％respectively compared with the CK treatment.LAF1 and LAF2 could significantly increase various photosynthetic indicators and SPAD values of apple leaves.The apple yield of LAF1 and LAF2 was significantly increased by 41.70％and 31.64％respectively compared with CCF,indicating that the treatment with large-particle activated humic acid slow-release fertilizer could significantly increase apple yield.[Conclusion]Large-particle activated humic acid slow-release fertilizer can effectively improve the photosynthetic characteristics of apple leaves to a certain extent,enhance apple yield and quality,and increase soil nutrient content.关键词
大颗粒肥料/缓释肥/腐植酸/果园Key words
Large particle fertilizer/Slow-release fertilizer/Humic acid/Orchard分类
农业科技引用本文复制引用
许洪楠,张琦,王景文,唐亚福,杨越超,程冬冬,王淳..大颗粒活化腐植酸缓释肥在苹果上的应用[J].西南农业学报,2025,38(8):1606-1615,10.基金项目
国家自然科学基金项目(32302675) （32302675）
湖南省教育厅优秀青年项目(23B0285) （23B0285）
福建省自然科学基金项目(2022J01606) （2022J01606）
