100 % American leonardite.
Organic matter: 75% w/w, N: 1,1%, C: 45%.
Humic acids: 40%.
Fulvic acids: 18%, pH: 3,5.
Electric conductivity: 1,2 dS/m.
C/N ratio: 41.
American leonardite for the improvement of soil organic matter levels. It improves mineral fertiliser efficiency increasing the cation exchange capacity and water holding capacity of agricultural soils.