In comparison with other organic products, leonardite has a high content of humic acids, because it is the final product of the humification process, which lasts about 70 million years. For comparison, peat is not the final product of this process, since the period of its formation lasts only a few thousand years. The difference between Leonardite and other sources of humic acids is that leonardite is extremely biologically active due to its molecular structure. This biological activity is approximately five times stronger than in other humus substances. So, one kilogram of leonardite contains 5 times more humic acids than other natural sources. From the point of view of the content of humic acids, one liter of leonardite is equivalent to 7-8 tons of organic fertilizers. In addition, one kilogram of leonardite is equivalent to approximately 30 tons of humus.
Содержание гуминовых и фульвовых кислот у природных источниках
|Black peat||10-40 %|
|Sapropel Peat||10-20 %|
|Brown coal||10-30 %|