基于和的肥来源对小麦生长和营养使用效率的不同影响
Hafiza Maria Asghar Alvi1, Wazir Ahmed2, Muhammad Yaseen1
1Institute of Soil & Environmental Sciences, University of Agriculture, Faisalabad, Pakistan.
Scientific reports
|August 5, 2025
概括
通过使用酸盐基形式优化 (N) 肥料,大大提高了小麦营养使用效率和石灰质土壤的产量. 与 (NH4+) 基肥相比,酸盐 (NO3-) 肥料提高了N,P和K的吸收和经济回报.
科学领域:
- 农业科学 农业科学
- 土壤科学 土壤科学
- 植物营养 植物营养
背景情况:
- 气候变化给农业营养管理带来了挑战,影响了营养的可用性和作物生产率.
- 优化施肥策略,特别是均衡的营养应用,对于营养使用效率和可持续的作物产量至关重要.
- 石灰质土壤对管理提出了特殊的挑战,原因是潜在的营养损失和转变.
研究的目的:
- 评估肥料中不同酸盐 (NO3-) 和 (NH4+) 比例对小麦生长和营养使用效率的影响.
- 在不断变化的环境条件下,确定最佳的管理策略,用于在石灰质土壤上种植小麦.
- 评估各种肥方法的经济可行性.
主要方法:
- 小麦经历了四种 (N) 施肥处理,其中NH4+/NO3-的比例不同:DAP-尿素 (100% NH4+),DAP-CAN (29% NH4+,71% NO3-),NP-尿素 (32% NH4+,68% NO3-),NP-CAN (100% NO3-).
- 测量包括植物N吸收,N,P和K使用效率 (INR,NACE,NARE,NAUE,FUTE,NPUE,PUE,KUE),肥料应激因子,农学参数和谷物产量.
- 进行了经济分析,以确定净收入,收益成本比率 (BCR) 和价值成本比率 (VCR).
主要成果:
- 与100%NH4+ (DAP-尿素) 相比,用100%NO3- (NP-CAN) 施肥的小麦表现出明显更高的N,P和K使用效率.
- 基于酸盐的治疗显示了INR,NACE,NARE和NAUE的改善,尽管与基于氨的治疗相比,FUTE和NPUE的减少.
- 基于酸盐的NP组合导致更高的净收入 (13-42%) 和BCR (3-12%),表明更大的经济可行性.
结论:
- 使用较高比例的酸盐 (NO3-) 的肥料管理策略更有效地提高了使用效率和在石灰质土壤上种植的小麦的作物生产率.
- 该研究表明,以酸盐为基础的源在改善农民营养吸收,产量和经济回报方面具有优越性.
- 这些发现为在面对气候变化的农业中开发可持续和经济合理的施肥实践提供了宝贵的见解.
关键词:
N 有效使用 N 有效使用NH4 +/NO3 − NH4 +/NO3 - - NH4 +/NO3 - - - - NH4 +/NO3 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -的使用效率效率.小麦小麦小麦小麦的小麦.相关概念视频
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