东南园艺2025，Vol.13Issue(3)：262-268,7.DOI:10.20023/j.cnki.2095-5774.2025.03.005
百香果园土壤养分状况调查与施肥方案探讨
Investigation of soil nutrient status and discussion on fertilization scheme in passion fruit orchard
摘要
Abstract
[Objective]This study aims to investigate the soil nutrient status and current fertilization practices in passion fruit orchards in Xinluo District,Longyan City,to provide guidance for rational fertilization.[Method]In 2024,soil samples were collected from 35 representative orchardsacross four major passion fruit-growing townships(Hongfang,Xiaochi,Dachi,and Jiangshan)in Xinluo District.Ten soil indicators were measured,including the five conventional nutrients(pH,organic matter,alkali-hydrolyzable nitrogen,available phosphorus,available potassium),secondary and micronutrients(exchangeable calcium,exchangeable magnesium,available boron,available zinc),and total water-soluble salts.Correlation analysis and adequacy diagnosis of these nutrients were conducted,comparing between soils under facility and open-field conditions.[Result]The results showed that 48%to 50%of the soil samples from the orchards had a pH value below 5.5.A high proportion of samples exhibited suitable or rich levels of organic matter,alkali-hydrolyzable nitrogen,available phosphorus,available potassium,exchangeable calcium,exchangeable magnesium,and available zinc.The contents of available potassium,exchangeable calcium and magnesium,available boron and zinc,and water-soluble salts were significantly higher in soils under protective cultivation compared to open-field orchards.In facility soils,90%of samples exceeded 80 mg/kg in available phosphorus,and 80%exceeded 1 g/kg in water-soluble salts,with 40%even surpassing 4 g/kg.Conversely,open-field orchards showed high deficiency rates for available potassium and available boron,reaching 28%and 36%,respectively.[Conclusion]Soils in the passion fruit orchards of Xinluo District are generally acidic but overall rich in nutrient content.However,facility soils exhibit notably high levels of available phosphorus and water-soluble salts,indicating potential risks such as soil pollution and salinization.Open-field orchards face relatively high deficiency rates of available potassium and boron.It is recommended to implement soil acidification amelioration,combine organic with inorganic fertilizers,optimize nitrogen application rates,and adopt balanced fertilization practices.Specifically,for facility soils,the application ratios of phosphorus,potassium,calcium,magnesium,and zinc should be reduced to prevent secondary salinization.关键词
百香果园/土壤养分/丰缺诊断/施肥建议Key words
passion fruit orchards/soil nutrients/diagnosis of abundance and deficiency/fertilization recommendations分类
农业科技引用本文复制引用
杜虹..百香果园土壤养分状况调查与施肥方案探讨[J].东南园艺,2025,13(3):262-268,7.基金项目
福建省农业农村厅科学施肥增效项目(闽财农指[2024]31号) （闽财农指[2024]31号）
