缓释肥和尿素联合应用对两种耕作方法下玉米的吸收,利用和产量的影响
Mingyuan Fan1,2, Pei Chen1, Chang Zhang1
1College of Agronomy, Shanxi Agricultural University, 030031, Taiyuan, Shanxi, China.
Scientific reports
|February 10, 2025
概括
将地下土壤与缓释肥料与尿素 (UNS2) 的比率为7:3相结合,可显著提高玉米产量,吸收和用水效率. 这种综合方法优化了农业系统中的作物性能和资源利用.
科学领域:
- 农业科学 农业科学
- 农业学是一种农业学.
- 土壤科学 土壤科学
背景情况:
- 在玉米生产中增加化学肥料的使用,降低了利用率,造成了污染.
- 慢释放肥料提供营养益处,但受到成本的限制.
- 传统的旋转耕作可以降低土壤结构;地下土壤改善了深层土壤的散装密度.
研究的目的:
- 研究耕作方法 (旋转耕作与旋转耕作+地下土) 和肥策略 (尿素与缓释肥料比率) 对玉米的联合影响.
- 评估对土壤用水效率,干物积累,吸收和产量的影响.
- 为了确定可持续和高效的玉米生产的最佳组合.
主要方法:
- 实地实验是在两年内使用盛388玉米进行的.
- 处理包括旋转耕作 (R) 和旋转耕作+地下土 (R+S) 结合不同的化肥施肥策略:不施肥 (CK),100%尿素 (U),100%缓释肥料 (S),以及各种尿素/缓释肥料比率 (UNS).
- 测量的主要绩效指标是用水效率,干物积累,吸收和利用,运营效率和谷物产量.
主要成果:
- 综合肥处理 (UNS) 在提高用水效率,干物积累,吸收,运行和产量方面明显优于CK,U和S.
- 通过UNS2处理 (缓释肥与尿素的比例为7:3) 显示出最有利的结果.
- 在2022年,R + UNS2显示出优异的结果;在2023年,R + S + UNS2的收益更好,表明了跨年耕作和施肥策略之间的动态相互作用.
结论:
- 地下土壤结合优化肥 (R+S+UNS2) 提高了玉米产量,提高了使用效率,提高了水使用和干物积累.
- UNS2 (7:3慢释放肥料与尿素的比例) 代表了最有效的管理策略.
- 地下土壤和战略应用 (R+S UNS2) 的综合方法被确定为玉米种植的最佳协调策略.
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