Abstract: Various methods and apparatuses may be used to spray sloped surfaces, such as by using a nozzle (1). The method of the invention for spraying a fluid on turf having sloped surfaces may include spraying the fluid using a flat fan spray angle between 110 and 130 degrees and an inclination angle between 4.5 and 9.0 degrees. In some implementations, spraying the fluid may include spraying the fluid using a flat fan spray angle of approximately 120 or 127 degrees. In some implementations, spraying the fluid may include spraying the fluid using an inclination angle of approximately 4.5 degrees. In some implementations, spraying the fluid may include spraying the fluid using an inclination angle of approximately 6.5 degrees. In some implementations, spraying the fluid may include spraying the fluid using an inclination angle of approximately 9.0 degrees. In some implementations, the inclination angle may include a backward facing angle.