改善玉米的碳和代谢途径和产量,通过的应用速度和形式
Fanhao Meng1,2, Ruifu Zhang1,2, Yuqin Zhang1,2
1College of Agronomy, Inner Mongolia Minzu University, Tongliao, Inner Mongolia, China.
PeerJ
|January 8, 2024
概括
优化 (N) 肥料形式,特别是3:1的酸盐-比率,显著提高了玉米的产量和滴灌下的N使用效率. 这一策略增强了作物新陈代谢和粮食生产.
科学领域:
- 农业科学 农业科学
- 植物生理学 植物生理学
- 土壤科学 土壤科学
背景情况:
- 过度使用 (N) 肥料会降低肥料的效率,这是农业中的一个关键问题.
- 研究往往侧重于N应用率,对N形式进行有限的探索以提高产量和效率.
研究的目的:
- 为了研究不同N应用速率和酸盐与氨比率对玉米炭化后碳 (C) 和N代谢的影响.
- 为了确定这些处理对玉米产量和N-使用效率在浅埋滴灌下的影响.
主要方法:
- 应用了两个N应用速率 (210kg·ha-1和300kg·ha-1),以及三个酸盐与的比率 (2:1, 3:1, 4:1).
- 测量包括光合作用后的光合作用特征,关键酶活动,非结构性碳水化合物含量,N积累/运输,产量和N使用效率.
主要成果:
- 3:1的酸盐与氨比率 (NF2) 增强了耳叶的光合作用活动和关键的C和N代谢酶活动.
- NF2显著增加了非结构性碳水化合物积累,解体后的N积累/运输和谷物产量.
- 较低的N应用率 (210kg·ha-1) 与3:1比率显示出更高的N使用效率,而不会影响产量.
结论:
- 210kg·ha-1的N应用率与3:1的酸盐与比率相结合,对于在浅埋水滴灌下高产玉米生产是最佳的.
- 这种方法为玉米种植中高效的管理提供了理论指导.
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