Knowing the nutrient content of your soil helps determine the right type and amount of fertiliser for each field. Key parameters include pH, humus, mobile phosphorus (P?O?), potassium (K?O), sulfur, magnesium, calcium, and soil texture. LAAS monitored fertilisation on five farms over three years and compared actual practices with soil test-based recommendations. Results showed that farms not using soil tests under-applied potassium by 45?kg/ha and over-applied nitrogen by 52?kg/ha annually. This led to missed yield potential and unnecessary costs. Soil testing helps optimise fertiliser use—either by reducing inputs or increasing yields where nutrients are lacking. It’s especially useful for farms without precision tools but aiming for more accurate, uniform fertilisation planning