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为吸取国外先进经验、在我国更好地实施平衡施肥技术，全国农业技术推广服务中心对以密西根州为代表的美国农业、肥料施用技术进行了考察。本文介绍了美国农业现状、肥料施用现状及施肥技术研究的情况。
In order to draw on advanced experience from abroad and implement balanced fertilization technology in our country better, the National Agricultural Technology Extension Service Center inspected the application of agricultural and fertilizer technologies in the United States represented by Michigan. This article describes the status quo of agriculture in the United States, the status of fertilizer application and fertilization technology.