在各种行配置条件下,滴滴化的玉米-大豆带交叉作物系统的光分发,拦截和使用效率
Hongtai Kou1, Zhenqi Liao1, Yiyao Liu1
1Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas of the Ministry of Education, Northwest A&F University, Yangling, China.
Plant, cell & environment
|June 26, 2025
概括
玉米和大豆的交叉作物显著改变了光的分配和使用效率,特定的行配置最大限度地提高了谷物产量. 优化边界行比例是提高带间作物系统作物生产率的关键.
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:
- 与单一作物相比,交叉作物对树冠结构,光线分布和作物产量产生影响.
- 了解玉米-大豆带交叉作物的光动力学,特别是排列配置,至关重要但有限.
研究的目的:
- 调查玉米-大豆带交叉作物的光分布,拦截和使用效率.
- 为了确定边界行/带宽比例与光利用和谷物产量之间的关系.
主要方法:
- 在两个季节内进行了八种交叉作物模式和单一作物控制的实地实验.
- 测量包括植物生长,谷物产量,树冠光合作用活性辐射.
- 使用条形作物结构模型模拟的光拦截分数.
主要成果:
- 间作物减少了玉米 (11.2%) 和大豆 (81.0%) 的累积光拦截.
- 在大豆 (138.8%) 中,光使用效率增加,但在玉米 (10.2%) 中下降.
- 在玉米的高边界列比例和大豆的中等比例 (2:4比率) 中实现了最佳产量.
结论:
- 排列配置极大地影响了玉米-大豆带交叉作物的光分布和资源使用.
- 优化边界行比例对于最大限度地提高系统谷物产量至关重要.
- 这些发现为交叉作物模型和光管理策略提供了信息.
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