通过特定地点的营养管理建议来实现可持续的玉米强化:来自尼日利亚的实验证据
Miet Maertens1, Oyakhilomen Oyinbo2, Tahirou Abdoulaye3
1Division of Bio-economics, Department of Earth & Environmental Sciences, KU Leuven, Belgium.
Food policy
|December 22, 2023
概括
在尼日利亚,特定地点营养管理 (SSNM) 的采用显著增加. 这种方法可以提高产量和收入,同时提高营养素使用效率,减少温室气体排放,以实现可持续农业.
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:
- 在撒哈拉以南非洲 (SSA) 的特定地点营养管理 (SSNM) 证据有限.
- 沙特亚洲的土壤肥力和肥料使用条件与亚洲有很大不同.
- 在SSA中SSNM的发展是相对较新的.
研究的目的:
- 评估SSNM咨询工具,以提供量身定制的肥料建议.
- 评估SSNM对尼日利亚玉米带小农的影响.
- 分析SSNM采用的农业,经济和环境结果.
主要方法:
- 这是一项为期三年的随机对照试验,涉及792名小农.
- 两个治疗臂:T1 (SSNM信息) 和T2 (SSNM + 价格/收益变化信息).
- 估计平均和异质的治疗意图对情节级结果的影响.
主要成果:
- T1和T2都大幅增加了采用良好肥料管理实践的比例 (高达116%).
- 第二试验显示营养应用,产量和收入的增量增加 (高达18%).
- 这两种处理都提高了营养使用效率,并降低了温室气体排放强度.
结论:
- 通过SSNM的咨询工具,可以有效地促进SSA的可持续强化.
- 将SSNM与经济信息 (T2) 结合在一起提供了额外的好处.
- 这种方法为非洲农业提供了亚洲绿色革命模式的可持续替代方案.
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