The dramatically increasing nitrogen fertiliser prices and growing environmental awareness emphasise the need to optimise machine operability to avoid double overlapping of the target dose rate in different field units, including headlands and field bodies, to be more congruent with satellite-based nitrogen prescription maps. However, the map grids frequently do not correspond with farmers’ management practices, specifically machine operability. To this end, this study develops an algorithm that subdivides any given field into operable units by considering pneumatic spreaders based on the actual tramline on the field and placing the operable units along with this. The newly developed algorithm allows ex-ante specification of the required fertiliser amount. It shows how well such techniques can implement an optimised application map supported by the statistical information for each field unit. Uniform fertilizer application can further be compared with variable rate application (VRA) as well as machinery with and without section control, allowing the identification of areas with the greatest deviation and the excess amount of nitrogen applied. A more precise nitrogen application on both homogeneous or heterogeneous field units saves nitrogen and decreases the negative environmental impact.

氮肥价格的急剧上涨和环保意识的增强强调需要优化机器的可操作性，以避免不同田间单位（包括岬角和田间体）的目标剂量率双重重叠，以便与基于卫星的氮处方图更加一致。然而，地图网格经常不符合农民的管理实践，特别是机器的可操作性。为此，本研究开发了一种算法，通过考虑基于现场实际电车线路的气动吊具并将可操作单元与其一起放置，将任何给定字段细分为可操作单元。新开发的算法允许预先指定所需的肥料量。它显示了此类技术如何能够很好地实现由每个现场单元的统计信息支持的优化应用程序图。可以进一步将均匀施肥与可变施肥 (VRA) 以及带和不带分段控制的机械进行比较，从而确定偏差最大的区域和施氮量过量的区域。在同质或异质田间装置上更精确地施用氮气可以节省氮气并减少对环境的负面影响。