| 陈锦平,邢颖,廖青,潘丽萍,龙飞,刘永贤.纳米碳酸钙和亚硒酸钠施用对沃柑防日灼和果实品质的影响[J].中国南方果树,2026,55(4):43-47 |
| 纳米碳酸钙和亚硒酸钠施用对沃柑防日灼和果实品质的影响 |
| Effects of nano-calcium carbonate and sodium selenite on sunburn mitigation and fruit quality in ''orah'' mandarin |
| 投稿时间：2025-07-16 修订日期：2025-08-25 |
| DOI： |
| 中文关键词: 纳米碳酸钙 日灼 果实着色 降温 果实品质 |
| 英文关键词:Nano-Calcium Carbonate Sunburn Fruit coloring Reducing temperature Fruit quality |
| 基金项目:广西自然科学基金(2024GXNSFAA010518)；八桂青年拔尖人才项目(桂人才办[2024]1号)；广西农业科学院基本科研业务专项(桂农科2024YP045; 桂农科2020YT039)；广西特色作物试验站项目(桂TS2022011)；科技先锋队专项(桂农科盟202414)。 |
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| 中文摘要: |
| 【目的】纳米肥料的开发为改善作物生产和养分利用提供了契机。钙、硒都是对人体健康有益的必需营养元素，本研究旨在探清纳米碳酸钙和亚硒酸钠在沃柑上的施用效果。【方法】以7年生沃柑为对象，设置对照（CK），单施硒肥（Se150），单施钙肥（Ca300），低钙肥+硒肥（Ca300+ Se75），高钙肥+硒肥（Ca600 + Se75）等5个不同的处理方式，研究沃柑的钙、硒营养强化效果、防日灼效应以及品质变化特征。【结果】结果表明，喷施钙肥显著提高沃柑叶片反光率，显著降低叶面温度7.3%-12.1%，降低果面温度9.9%-11.3%，但对沃柑日灼果率无显著影响。喷施钙肥显著降低果皮亮度L*值和黄蓝色度b*值，提高红绿色度a*值11.6%-14.3%，利于提升果实商品价值。施加了钙肥的处理组显著提高果实钙含量16.3%-38.8%，降低可滴定酸含量约12.5%，但对维生素C、还原糖和可溶性固形物含量均无显著影响。单独喷施硒肥不能达到相应的补硒、防日灼和改善品质效果。【结论】纳米碳酸钙在沃柑降温、促着色和钙营养强化方面综合表现突出，在拓展钙肥功能、提升沃柑效益上具有较大的应用潜力。 |
| 英文摘要: |
| [Objective] The development of nano-fertilizers presents an opportunity to enhance crop production and nutrient utilization. Both calcium (Ca) and selenium (Se) are essential nutrient elements beneficial to human health. This study aimed to investigate the effects of nano-calcium carbonate and sodium selenite application on Orah mandarin trees. [Methods] Seven-year-old Orah mandarin trees were subjected to five different treatments: control (CK), selenium fertilizer alone (Se150), calcium fertilizer alone (Ca300), low-calcium fertilizer + selenium fertilizer (Ca300 + Se75), and high-calcium fertilizer + selenium fertilizer (Ca600 + Se75). The study assessed the nutritional enhancement of Ca and Se, the sunburn prevention effect, and changes in fruit quality characteristics. [Results] Foliar application of Ca fertilizer significantly increased leaf reflectance and reduced leaf temperature by 7.3%-12.1% and fruit surface temperature by 9.9%-11.3%. However, it did not significantly affect the sunburn incidence rate. Ca application significantly decreased peel brightness (L* value) and blue-yellow chroma (b* value), while increasing red-green chroma (a* value) by 11.6%-14.3%, contributing to improved fruit market value. Treatments receiving Ca fertilizer significantly increased fruit Ca content by 16.3%-38.8% and reduced titratable acid content by approximately 12.5%, but had no significant effect on vitamin C, reducing sugar, or soluble solids content. Sole application of Se fertilizer failed to achieve significant Se supplementation, sunburn prevention, or quality improvement effects. [Conclusion] Nano-calcium carbonate demonstrated outstanding comprehensive performance in reducing fruit surface temperature, promoting coloration, and enhancing Ca nutrition in Orah mandarin. It exhibits significant application potential for expanding the functionalities of Ca fertilizers and improving the economic benefits of Orah mandarin cultivation. |
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