不同玉米品种的谷物产量和营养状况因硫酸盐的应用而变化
Juan Xin1, Ning Ren2, Xueling Hu3
1National Institute of Central Cities, Zhengzhou Normal University, Zhengzhou, China.
PloS one
|March 8, 2024
概括
叶子硫酸盐的应用对玉米品种的影响不同. 只有45.5%的产量表现出积极的产量反应,突出显示需要考虑种类敏感性和营养平衡,以获得最佳的肥.
科学领域:
- 农业科学 农业科学
- 植物营养 植物营养
- 农业学是一种农业学.
背景情况:
- 玉米 (Zea mays L.) 容易出现 (Zn) 缺乏,影响作物的产量和质量.
- 硫酸 (ZnSO4) 的叶子应用是解决 Zn 缺乏症的常见策略.
- 对叶子ZnSO4的培养特异性反应需要对施肥采取细微的方法.
研究的目的:
- 量化叶子ZnSO4对不同玉米品种的谷物产量和营养吸收 (N,P,K) 的影响.
- 为了区分耐 Zn 缺乏症和敏感的玉米品种之间的反应.
- 为优化玉米中化肥策略提供建议.
主要方法:
- 实地实验涉及22种现代玉米品种.
- 在ZnSO4的叶子应用.
- 测量谷物产量,营养积累 (N,P,K) 和干燥生物质.
- 对缺乏的品种敏感性的评估.
主要成果:
- 40.9%的品种对叶子ZnSO4没有反应;45.5%的品种呈现出积极的产量增加.
- SO4的应用增强了耐缺乏症品种的积,但减少了P和K的吸收.
- 对缺乏敏感的品种表现出与SO4的改善和积,但营养利用效率降低.
- 从8叶阶段 (BBCH18) 开始观察到化肥对干燥生物质的影响.
结论:
- 玉米品种对Zn的敏感性显著影响了对叶子ZnSO4.4的反应.
- 优化Zn施肥需要考虑土壤的Zn含量和特定种类的敏感性.
- 补充N和K对于在敏感的玉米品种中最大限度地提高Zn受精效益至关重要.
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