腐殖酸土壤调理剂对麦积区苹果产量及果品品质的影响
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中图分类号：S661.1 文献标识码：A
Effects of Humic Acid Soil Conditioner on Apple Yield and Fruit Quality in Maiji District
JIN Wei （Agricultural Technology Extension Centerof Maiji District，Tianshui City，GansuProvince，Tianshui Gansu741O2O，China）
Abstract： 【Objective】 To investigate the improvement effect of“Heisongtu”Humic Acid Type Il Soil Conditioner on soil physicalandchemical properties inaridandsmi-aridregions，aswelasitsenhancing efectonappleyieldandquality，andto clarifytheoptimal applicationratioand technical modeof this conditioner inapple orchards in Maiji District.【Methods】A fixed-positionfield experiment was conducted in Diaobaoliang Village，Mapaoquan Town，Maiji District，Tianshui Cityfrom 2024 to 2025.Threetreatment groups were setup，namelyconventional fertilization（CK），soilconditioner combined with conventionalfertilizationndsoilconditionercombined withhumicacidorganic-inorganicfertlizerandfunctionalpackageThe efects ofdiferent treatments onsoil nutrientcontents，apple yieldandquality indicators were systematicallyanalyzed.【Results】 The combined application scheme，i. e. ，applying 40kg of Soil Conditioner Type II ， 50kg of humic acid organic-inorganic fertilizer （10-5-20） and 20kg of functional package per 3 mu of orchard （667m2 ），yielded the optimal effect. Compared with the pre-experiment level，the soil organic matter content increased by 86.8% ，available phosphorus content rose by 179.64% ， alkali-hydrolyzable nitrogen content increased by 139.17% ， and available potassium content grew by 54.38% . The apple yield reached 2 037.2kg per mu，representing an increase of 18.26% compared with the CK group. In terms of fruit quality，compared with the CK group，thefruit firmness，soluble solidscontent，soluble sugar content and vitamin Ccontent increased by 22.72% ， 25.15% ， 21.26% and 21.26% respectively，while the titratable acid content decreased by 20.00% 【Conclusion】The applicationratioof Treatment3 improves soil tructure and enhances nutrient suplycapacity，whileachie vingthesynergisticimprovementofbothappleyieldandquality，andthusissuitableforpopularizationandaplicationinactual production.The research results provide scientific basisand technical support forthequalityandeficiency improvement，as wellas fertilizer reduction and efciency increase of apple orchards under arid conditions inMaiji District.
Key words：apple；humic acid soil conditioner；soil nutrients；yield;quality
麦积区地处甘肃省东南部，属干旱半干旱气候区，是我国花牛苹果的核心产区之一。（剩余6027字）
