Sulfur fertiliser use in the Midwestern US increases as atmospheric sulfur deposition declines with improved air quality
Sulfur fertiliser use in the Midwestern US increases as atmospheric sulfur deposition declines with improved air quality
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DOI：
10.1038/s43247-022-00662-9
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发表时间：
2022-12-23
影响因子：
7.9
通讯作者：
Driscoll, Charles T. T.
中科院分区：
文献类型：
--
作者：
Hinckley, Eve-Lyn S.;Driscoll, Charles T. T.
硫作为植物生长的必需营养素，已越来越多地用于许多作物的肥料应用中。这一增长与美国和欧洲空气质量改善导致大气硫沉积量下降相一致。在这里，我们按质量评估硫肥销售趋势，作为化肥应用的代理，并估计整个美国中西部的大气硫沉积总量。1985年至2015年，作物面积、产量和硫肥施用量大幅增加，与大气硫沉降量下降相一致。硫肥的增加速度超过了其他主要营养肥料（包括氮、磷和钾）的相对变化速度，2009年之前约为7倍，2009年之后约为29倍。我们认为，迫切需要开发硫管理工具，优化化肥施用，以保持作物产量，同时最大限度地减少环境中过量硫的后果。
Sulfur, as an essential nutrient for plant growth, has increasingly been used in fertiliser applications for many crops. This increase is coincident with declines in atmospheric sulfur deposition in response to air quality improvements in the United States and Europe. Here, we evaluate trends in sulfur fertiliser sales by mass, as a proxy for fertiliser applications, and estimate total atmospheric sulfur deposition across the Midwestern United States. Crop acreage, yield and sulfur fertiliser application substantially increased between 1985 and 2015, coincident with declines in atmospheric sulfur deposition. The increase in sulfur fertiliser has outpaced the relative rate of change in other major nutrient fertilisers including nitrogen, phosphorus and potassium, by approximately 7-fold prior to 2009, and 29-fold after 2009. We suggest that there is a critical need to develop sulfur management tools that optimize fertiliser applications to maintain crop yields while minimizing the consequences of excess sulfur in the environment.