The effects of a glyphosate ban on cultivation of silage maize are simulated using a spatially explicit bio-economic model that accounts for different pre- and post-sowing weed control strategies and production risks. We analyse the effects of a glyphosate ban on farmers choices of field-level weed control strategies. These strategies are evaluated in two environmental dimensions. More specifically, we consider a pesticide load indicator to assess environmental toxicity, fate and human health effects as well as the energy demand of the agricultural system. We find that a glyphosate ban leads to a significant reduction of the pesticide load of silage maize production. However, a glyphosate ban also leads to somewhat higher energy consumption. Acknowledgement : We thank Ganga Ram Maharjan and Thomas Gaiser from the Crop Science Group of University of Bonn for providing yield data for this research. Furthermore, we thank the plant protection consultants of the Chamber of Agriculture of NRW and of the Chamber of Agriculture of Lower Saxony for providing valuable information supporting this research.

中文翻译：

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以玉米生产为例对草甘膦禁令的经济和环境评估

使用空间明确的生物经济模型模拟了草甘膦禁令对青贮玉米种植的影响，该模型考虑了不同的播种前和播种后杂草控制策略和生产风险。我们分析了草甘膦禁令对农民选择田间杂草控制策略的影响。这些策略在两个环境方面进行评估。更具体地说，我们考虑使用农药负荷指标来评估环境毒性、命运和人类健康影响以及农业系统的能源需求。我们发现草甘膦禁令导致青贮玉米生产的农药负荷显着减少。然而，草甘膦禁令也会导致更高的能源消耗。确认：我们感谢波恩大学作物科学小组的 Ganga Ram Maharjan 和 Thomas Gaiser 为本研究提供了产量数据。此外，我们感谢北威州农业商会和下萨克森州农业商会的植物保护顾问提供支持这项研究的宝贵信息。