通过评估因素生产率,在半干旱热带地区可持续加强气候适应性玉米-小系统
S R Salakinkop1, S C Talekar2, C R Patil3
1All India Coordinated Maize Improvement Project, Main Agricultural Research Station, University of Agricultural Sciences, Dharwad, Karnataka, 580 005, India. salakinkopsr@uasd.in.
Scientific reports
|February 17, 2024
概括
适应气候变化的玉米-小系统的生态强化 (EI) 显著提高了作物产量和土壤健康. 这种方法提高了谷物和的产量,改善了土壤的营养,并增加了与传统农业方法相比的经济回报.
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:
- 全球玉米生产在很大程度上依赖于扩大种植面积,而不是产量增加.
- 可持续的强化对于满足未来的粮食需求至关重要.
- 适应气候变化的作物系统对于适应环境变化至关重要.
研究的目的:
- 评估一种耐气候化的玉米-小作物种植系统的生态强化 (EI).
- 将EI与农民实践 (FP) 和其他管理策略进行三年比较.
- 评估EI对作物产量,土壤特性,能源动态和经济回报的影响.
主要方法:
- 一个为期三年的实地实验 (2017-2020年),将EI与FP和其他治疗方法进行比较.
- 伊利纳入了玉米-豆种植的最佳管理实践.
- 测量包括作物产量,土壤有机碳,营养物质的可用性,土壤酶活性,能源使用和经济利能力.
主要成果:
- 生态强化 (EI) 显著增加了玉米的谷物产量 (7560公斤/公) 和小的产量 (797公斤/公).
- EI改善了土壤有机碳,可用的N,P,K,Zn和Fe,以及增强了土壤酶活性.
- 与FP和其他经过测试的管理实践相比,EI显示出更高的净回报率和效益成本比率.
结论:
- 生态强化为提高玉米-小系统的生产率和可持续性提供了一个可行的策略.
- 易提高土壤的肥力和健康,有助于长期的农业弹性.
- 采用EI实践会为农民带来更好的经济成果.
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