优化水资源利用效率和水的水果质量在干旱地区的灌灌下
Zhiyuan Liu1,2, Hengjia Zhang1, Shouchao Yu1
1College of Agriculture and Biology, Liaocheng University, Liaocheng, China.
Frontiers in plant science
|December 10, 2025
概括
干旱地区的缺水改善了西瓜的质量和用水效率. 在播种阶段的轻微赤字和在成熟阶段的中度赤字 (T2) 为节水和高质量的水果生产带来了最好的结果.
科学领域:
- 农业科学 农业科学
- 植物生理学 植物生理学
- 干旱的土地 农业 农业
背景情况:
- 河西绿洲面临着水资源短缺,阻碍了可持续农业.
- 传统的洪水灌效率低下,影响了水和土壤资源的利用.
研究的目的:
- 调查各种缺水模式对干旱地区西瓜生长的影响.
- 确定最佳的灌策略,以提高西瓜产量,质量和用水效率.
主要方法:
- 从2020-2021年开始,对"新农民8"西瓜进行实地实验.
- 五项处理试验在苗木和成熟阶段测试了不同水不足水平 (轻度/中度).
- 控制 (CK) 获得了完整的供水;处理范围为50%-70%的现场容量 (FC).
主要成果:
- 缺水减少了光合作用率 (Pn,Tr,Gs),但提高了灌用水效率 (IWUE).
- 治疗T2 (轻度幼苗,中度成熟赤字) 显示最高的IWUE (0.78t·ha-1·mm-1),比CK高10.50%.
- 缺水处理增加了可溶固体,糖,维生素C和蛋白质含量,其中T2显示最大的增加.
- 在T1和T2的收益率与CK相比,表明保持了生产力.
结论:
- 多阶段灌,以温和的幼苗和中度/温和的成熟阶段缺陷 (T1/T2) 优化了用水效率和水果质量.
- 这一策略是可行的节水和高质量的西瓜生产在干旱的绿洲环境.
- 这些发现为在缺水地区有效种植西瓜提供了科学基础.
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