和管理对土壤酶活性,营养供应和小麦产量的影响
Hai-Yang Jin1,2, Yu-Hao Zhao1, Chun-Miao Li3
1Wheat Research Institute, Henan Academy of Agricultural Sciences/Henan Engineering Research Center for Synergistic Improvement of Wheat Yield-Quality, Zhengzhou 450002, China.
Ying yong sheng tai xue bao = The journal of applied ecology
|December 15, 2025
概括
优化 (N) 和 (P) 肥料应用时间显著影响土壤营养和小麦产量. 分割应用,特别是3N2P方法,增强土壤酶活性,营养物质的可用性,并促进干物质的积累,以增加小麦谷物产量.
科学领域:
- 农业科学 农业科学
- 土壤科学 土壤科学
- 农业学是一种农业学.
背景情况:
- 优化 (N) 和 (P) 管理对于可持续的农业和作物产量至关重要.
- 了解不同作物生长阶段的营养转化和供应动态,是有效使用肥料的关键.
- 小麦产量形成与土壤营养物质的可用性和植物生理过程密切相关.
研究的目的:
- 研究不同N和P应用频率对土壤营养物质转化和供应的影响.
- 评估各种N和P管理策略对土壤酶活动和小麦产量的影响.
- 确定最佳的N和P施肥方案,以提高小麦干物质积累和谷物产量.
主要方法:
- 实地实验在两个地点进行了四种N和P应用治疗 (2N1P,3N1P,2N2P,3N2P),使用相同的N和P总率.
- 分析了土壤酶活动 (β-1,4-葡萄糖酶,细胞酶,氨酸酶,酸酶).
- 测量了土壤中可用的营养含量,小麦干物质积累和谷物产量,并在处理过程中进行了比较.
主要成果:
- 3N2P处理显著增强了土壤的β-1,4-葡萄糖酶和细胞核酶活动.
- 两种2N2P和3N2P处理都增加了土壤可用的,并显著改善了小麦谷物产量,3N2P显示出更高的增加 (7.8%-10.8%).
- 3N2P战略特别促进了合成和成熟阶段的干物质积累 (14.3%-25.7%).
结论:
- 应用肥在两到三分剂和在两分剂,特别是3N2P战略,优化土壤营养动力学.
- 这种优化的肥料增强了土壤酶活性和营养素的可用性,促进了小麦干物质的积累.
- 3N2P管理方法通过改善营养供应和干物分区,有效提高小麦谷物产量.
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