When a crop productivity varies in space and time, we conduct soil sampling by grid (1 sample for every 2 or 3 hectares). This collection is performed with equipment installed in quads. With the results of soil analysis in hand, we perform data interpolation using geostatistical techniques, obtaining soil fertility maps.
Once the problem was found, we decided to correct fertility with variable rate application or in limestone, phosphate and potassium chloride management zones. These applications are made by machines using satellite signal to apply the correct dose in each region of the crop.
We take into consideration the results of particle size, clay, silt and sand analysis to carry out the planning of supplies and the appropriate recommendation for each crop.
We monitor possible problems with soil compaction using ground sensors.
Electrical conductivity sensors can indicate possible variations in particle size, moisture and organic matter content and soil nutrients.
In specific situations for some crops it is necessary to monitor the occurrence and population of nematodes. Using grid sampling (georeferenced) you can create nematode maps.