SOURCE™ and HUMI-SOURCE™ brand leonardite based humic acid products improve the nutrition and yields in a wide variety of crops. Made from North Dakota Leonardite, the purest form of natural humic acids known in the world, SOURCE™ and HUMI-SOURCE™ help to relieve plant stress whether it’s applied as a soil amendment or mixed with fertilizer. The natural bio-stimulants found in SOURCE™ and HUMI-SOURCE™ improve the availability of nutrients in the soil, particularly phosphorus and micronutrients. The soils nutrient holding capacity is increased as well as water holding capacity. The workability of problem soils is improved; weak areas in a field become less noticeable. SOURCE™ and HUMI-SOURCE™ enhance any crops ability to absorb nutrients and resist stress, especially in marginal soils, resulting in faster growth and higher yields.