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Does adopting a nitrogen best management practice reduce nitrogen fertilizer rates?
Agriculture and Human Values ( IF 4.5 ) Pub Date : 2021-06-03 , DOI: 10.1007/s10460-021-10227-9
Matthew Houser

Technical best management practices are the dominant approach promoted to mitigate agriculture’s significant contributions to environmental degradation. Yet very few social science studies have examined how farmers actually use these practices. This study focuses on the outcomes of farmers’ technical best management practice adoption related to synthetic nitrogen fertilizer management in the context of Midwestern corn agriculture in the United States. Moving beyond predicting the adoption of nitrogen best management practices, I use structural equation modeling and data from a sample of over 2500 farmers to analyze how the number of growing season applications a farmer uses influences the rate at which synthetic nitrogen is applied at the field-level. I find that each additional application of N during the growing season is associated with an average increase of 2.4 kg/ha in farmers’ average N application rate. This result counters expectation for the outcome of this practice and may suggest that structural pressures are leading farmers to use additional growing season applications to ensure sufficiently high N rates, rather than allowing them to reduce rates. I conclude by discussing the implication of this study for future research and policy.



中文翻译:

采用氮最佳管理实践是否会降低氮肥用量?

技术最佳管理实践是为减轻农业对环境退化的重大贡献而提倡的主要方法。然而,很少有社会科学研究研究农民如何实际使用这些做法。本研究的重点是在美国中西部玉米农业的背景下,农民采用与合成氮肥管理相关的最佳技术管理实践的结果。除了预测氮最佳管理实践的采用之外,我还使用结构方程模型和来自 2500 多名农民样本的数据来分析农民使用的生长季节应用数量如何影响在田间应用合成氮的速度 -等级。我发现在生长季节每增加一次施氮量,农民的平均施氮量就会平均增加 2.4 公斤/公顷。这一结果与对这种做法结果的预期背道而驰,并可能表明结构性压力正在导致农民使用额外的生长季节应用来确保足够高的氮肥施用量,而不是让他们降低施用量。最后,我将讨论这项研究对未来研究和政策的影响。

更新日期:2021-06-04
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