Enhancing passion fruit (Passiflora edulis f. flavicarpa Degener) agriculture with application of alkaline humic acid fertilizer and chemical fertilizer: A effective approach to soil and fruit quality optimization

文献类型： 外文期刊

第一作者： Fan, Qiong

作者： Fan, Qiong;Feng, Jian;Wu, Huiyu;Jiu, Yuanda;Wu, Xiaofang;Zhang, Qun;Xu, Zhi;Fan, Qiong;Feng, Jian;Wu, Huiyu;Jiu, Yuanda;Wu, Xiaofang;Zhang, Qun;Fan, Qiong;Feng, Jian;Wu, Huiyu;Jiu, Yuanda;Wu, Xiaofang;Zhang, Qun;Fan, Qiong;Feng, Jian;Wu, Huiyu;Jiu, Yuanda;Wu, Xiaofang;Zhang, Qun;Yu, Junyan;Xu, Zhenzhen;Yu, Junyan

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关键词： Passion fruit; Alkaline humic acid fertilizer; Soil property; Metabolomics; Functional compound

期刊名称：ENVIRONMENTAL TECHNOLOGY & INNOVATION （ 影响因子：7.1； 五年影响因子：7.1 ）

ISSN： 2352-1864

年卷期： 2025 年 39 卷

页码：

收录情况： SCI

摘要： Agricultural practices like continuous cropping and excessive chemical fertilization contribute to soil nutrient depletion, adversely affecting the quality and yield of passion fruit. To sustainably enhance soil quality and ensure the quality of passion fruit, this study investigates the combined application of alkaline humic acid fertilizer (AHF) and chemical fertilizer (CF) in passion fruit cultivation on a field that had been continuously cultivated for two years. We observed that the 55 % CF + AHF treatment (a 45 % reduction in CF with AHF) significantly improved soil nutrient content compared to the 100 % CF treatment, resulting in increases of 112.9 % in available nitrogen (AN), 107.9 % in available phosphorus (AP), and 446.2 % in available potassium (AK). This treatment also maintained soil conductivity and trace mineral stability while enhancing several fruit quality indicators, including a 40.4 % increase in fruit yield, as well as improvements in the sugar/acid ratio, vitamin C (VC) content, and amino acid levels. Furthermore, metabolomics analyses indicated that the 55 % CF + AHF group was enriched in functional small molecules, such as piceatannol, isoorientin, phytosphingosine, oligopeptides, and flavor-related compounds. Conversely, higher rates of CF application were associated with significant reductions in three functional oligopeptides levels. Therefore, this underscores AHF's critical role as a supplement for reducing CF usage while mitigating negative effects from continuous passion

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