Soil sampling and chemical analysis
- Define field areas to be sampled separately;
- 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 Dronе/;
- Chemical analysis of the sampled soil measures values of 14 indicators within, which are the following:
Exchangeable cationic capacity (meq / 100g)
pH
Exchange capacity of cation ion-exchange (meq/100g)
K/Potassium (ppm)
P/Phosphorus (ppm)
S/Sulfur (ppm)
Zn/Zinc (ppm)
Na/Sodium (ppm)
Fe/Iron (ppm)
Mo/Molybdenum (ppm)
Cu/Copper (ppm)
B/Boron (ppm)
Mn/Manganese (ppm)
Mg/Magnesium (ppm)
Ca/ Calcium (ppm)
- Chemical analysis results are used for:
- Annual farm management plan;
- Defining proper fertilizer micronutrients and macronutrients, including their quantity ratio based on the soil needs;
- Estimating of fertilizer application rate in the different sampled zones;
- Execution of variable rate application (VRA) prescription map for fertilization;
- GIS analyses. Field data measurements can be compared such as vegetation measurement (NDVI), chemical results from leaf samples, yield measurements and others.