本标准旨在提供一种评估粒状材料应用精度的方法 使用可变速率应用系统应用，包括旋转圆盘式广播撒布器或类似设备 分发肥料的。具体而言，本标准将促进基于地图的数据收集和报告 单个和多个颗粒产品的应用精度。

The purpose of this Standard is to provide a method to evaluate application accuracy of granular materials applied using variable-rate application systems including spinner-disc broadcast spreaders or similar equipment that distribute fertilizers. Specifically, this standard will facilitate the collection and reporting of map-based application accuracy of both single and multiple granular products.