优化的应用频率,以提高密集种植和滴灌玉米的开花后物质积累,产量和水/使用效率
Dongping Shen1,2, Linli Zhou1, Keru Wang2
1Key Laboratory of Oasis Eco-Agriculture, Xinjiang Production and Construction Corps, College of Agronomy, Shihezi University, Shihezi, China.
Journal of the science of food and agriculture
|June 18, 2025
概括
通过滴灌优化气应用频率,可显著提高玉米产量和资源利用效率. 六次应用最大限度地提高了产量,水利用效率 (WUE) 和生理利用效率 (PNUE).
科学领域:
- 农业科学 农业科学
- 农业学是一种农业学.
- 植物生理学作物生理学
背景情况:
- 玉米产量稳定对于粮食安全至关重要.
- 传统的灌和气方法是低效和污染的.
- 优化水和管理对于可持续农业至关重要.
研究的目的:
- 评估不同施加频率对玉米生长和产量的影响.
- 确定"Dika 159"玉米的最佳水和管理策略.
- 评估对生理利用效率 (PNUE) 和水利用效率 (WUE) 的影响.
主要方法:
- 用"Dika 159"玉米 (9.0 × 104 种植物 ha−1) 进行实地实验.
- 五个频率 (0,2,4,6,8次) 与滴灌.
- 控制:农民一次性基础应用与洪水灌 (F1).
主要成果:
- 应用六次 (F4) 显著增加了叶面积指数和叶子持续时间.
- 与F1.1相比,F4增强了94.44%的溶解后干物质积累.
- 最佳产量 (15.8216.06 t ha−1),PNUE (7.877.44 kg kg−1),和WUE (2.102.14 kg m−3) 在六次应用后实现.
结论:
- 增加的应用频率 (六次) 延长了叶子的功能和延迟衰老.
- 增强的后光合作用促进物质积累和核重量.
- 优化频率可以提高玉米产量和水/肥料利用率.
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