有利于生产力和环境:当前和未来的玉米作物种植系统可以提高产量,同时减少酸盐负载
Frank G Dohleman1, Ty J Barten2, Nicholas Helland2
1Climate, Agriculture and Partnership Solutions Consulting, LLC, Hawthorn Woods, Illinois, USA.
Journal of environmental quality
|January 24, 2024
概括
现代玉米作物系统显著提高了产量和效率,从而大大减少了酸盐损失和改善了水质. 持续的进步对于可持续农业至关重要.
科学领域:
- 农业科学 农业科学
- 环境科学 环境科学
- 农业学是一种农业学.
背景情况:
- 谷物作物产量增加提高了全球粮食安全.
- 时代研究评估了对作物产量的遗传和管理影响.
- 玉米 (Zea mays L.) 种植系统演变对环境的影响仍未得到充分研究.
研究的目的:
- 评估玉米产量和酸盐损失的变化,从"旧" (1990年代) 到"当前" (2010年代) 和"未来" (2030年代) 的作物系统.
- 测试改善玉米产量和使用效率有利于水质的假设.
主要方法:
- 在美国爱荷华州开发了一项作物系统时代研究.
- 对比"旧"",现行"和"未来"的玉米作物种植系统.
- 产量和酸盐负荷的量化变化 + 土壤酸盐.
主要成果:
- 随着时间的推移,玉米产量和使用效率 (千克谷物千克-1N) 得到了改善.
- 产量缩放的酸盐负载 + 土壤酸盐从旧到当前系统下降了74%.
- 产量缩放的酸盐负载 + 土壤酸盐从旧到未来系统下降了91%.
结论:
- 玉米种植系统的进步提高了产量和使用效率.
- 与较旧的系统相比,现代和未来的玉米系统显示出显著的水质优势.
- 持续改进对于养活不断增长的人口和保护生态系统服务至关重要.
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