This question also weighed on me. Then, last year, I had the opportunity to test different methods of sampling soil with high accuracy. Frendt
, a supplier of precision farming equipment in Ukraine, conducted a soil nutrient analysis covering a 0.28-ha sampling grid in a field in Ukraine’s Vinnytsia Region. The company shared the results of its analysis with me to create several phosphorus and potassium distribution maps using different sampling methods and grids.
In this post, I’ll show you my results and tell you my conclusions.