利用物流模型来增强营养动力学模型,以各种和肥施肥策略在交叉作物春季小麦中进行营养动态建模
Yue Feng1, Ying Ma1, Renqiang Deng1
1College of Agriculture, Shanxi Agriculture University, Shanxi, Taigu, China.
PloS one
|December 5, 2024
概括
将春小麦与豆交叉种植显著提高了作物的产量和营养吸收. 通过特定的肥料率,可以获得最佳产量,这表明在交叉作物系统中平衡肥料的重要性.
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 植物生理学
背景情况:
- 交叉作物系统可以提高作物生产率和资源利用率.
- 间作物中的营养动态和产量反应需要详细的研究.
研究的目的:
- 评估春季小麦-豆交叉种植和不同肥料率对春季小麦产量和营养积累的影响.
- 使用后勤函数建模营养吸收动态.
主要方法:
- 实地实验比较春季小麦单一栽培 (MS) 和杂交作物 (MI) 与五种复合肥料水平 (C0-C4).
- 评估春小麦产量,在地面上积聚 (N) 和 (P).
- 应用物流模型来模拟营养吸收动态.
主要成果:
- 与单一栽培相比,间隔作物增加了春小麦数 (3.7%),每的谷物 (6.3%) 和谷物产量 (13.3%).
- 在C2肥料率 (540公斤/ha-1) 的情况下观察到最佳产量.
- 与单一种植相比,增强春季小麦的最大累积N (11.4%) 和P (11.3%) 和吸收率 (N: 13.2%,P: 9.5%) 的间隔作物.
结论:
- 交叉作物和优化施肥都大大提高了春小麦的营养吸收和积累,从而提高了产量.
- 春季小麦/豆交叉作物系统显示,在降低肥料应用的情况下,有潜力提高产量 (C2下减少10%).
- 有效的肥料管理对于最大限度地提高交叉作物系统的产量效益至关重要.
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