Leaf sampling and chemical analysis

  1. Define field areas to be sampled;
  2. Selection of appropriate sampling method according to the topographic features of the field, the soil differences and the crops grown. / Terrain data is taken from a 3D model and spectral analysis of the soil made with DronŠµ/;
  3. The laboratory chemical analysis provides information on the following 12 indicators along with their crop-specific reference values:

H/ Nitrogen (ppm)

P/Phosphorus (ppm)

K/Potassium (ppm)

Ca/ Calcium (ppm)

Mg/Magnesium (ppm)

Mn/Manganese (ppm)

B/Boron (ppm)

Cu/Copper (ppm)

Mo/Molybdenum (ppm)

Fe/Iron (ppm)

S/Sulfur (ppm)

Zn/Zinc (ppm)

  1. Chemical analysis results are used for:
  • Annual farm management plan;
  • Selection of fertilizer with appropriate composition and percentage of active substances;
  • Estimation of fertilizer application rate in the different sampled zones;
  • Execution of variable rate application (VRA) prescription maps for fertilization.
  • GIS analyses. Field data measurements can be compared such as vegetation measurement (NDVI), chemical results from leaf samples, yield measurements and others.