Leonardite & Potato Yield: +38% Marketable Tubers| Humicore
Peer-reviewed field trial data: leonardite at 400 kg/ha increases marketable potato yield by 38%, tuber count by 22%, and vitamin C by 17%. See the full agronomic case.
Day: May 25, 2026
Peer-reviewed field trial data: leonardite at 400 kg/ha increases marketable potato yield by 38%, tuber count by 22%, and vitamin C by 17%. See the full agronomic case.