提高酸盐与的比率改善了苗的植物生长和吸收
Haiyang Ma1,2,3, Siru Liu1,2, Qiufang Zhao1,2
1Key Laboratory of Tropical Crop Nutrition of Hainan Province, South Subtropical Crop Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, Guangdong, China.
Frontiers in plant science
|February 5, 2026
概括
生长的最佳比为70%的酸 (NO3−) 和30%的 (NH4+). 这个比率最大限度地提高了植物生长,营养吸收和生物质积累在种植.
科学领域:
- 园艺科学 园艺科学
- 植物营养 植物营养
- 农业科学 农业科学
背景情况:
- 酸盐 (NO3−) 和 (NH4+) 的组合比单个来源更有利于的生长.
- 对于种植的最佳NO3−:NH4+比率尚未完全理解,这阻碍了肥料管理.
研究的目的:
- 确定最佳的NO3−:NH4+比率,以最大限度地提高 (Ananas comosus L. cv. 巴黎县) 的增长.
- 研究不同NO3−:NH4+比对植物发育和营养积累的影响.
主要方法:
- 用5种NO3−:NH4+比率 (0:100,30:70,50:50,70:30,100:0) 在总度为4mM的水培实验.
- 系统地调查芽和根的生长,碳 (C) 和 (N) 的积累,以及根的NO3−和NH4+吸收率.
主要成果:
- 70:30的NO3−:NH4+比率显著提高了根的长度,表面积和NO3−吸收.
- 增加酸盐比例促进了植物的N吸收,甲和乙含量,叶面积,叶干物质以及植物的C和N积累.
- 与单独的NH4+相比,70:30比率的叶面积增加了61.10%,植物N积累增加了19.49%.
结论:
- 70:30的NO3−:NH4+比率是生长的最佳,增强了根和芽的发展和C/N积累.
- 这些发现为优化肥管理提供了关键的见解,以提高的生产力.
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