In this article. DMSO, or dimethyl sulfoxide, is a by-product of paper making. It comes from a substance found in wood. DMSO has been used as an industrial solvent since the mid-1800s.MSO is easily absorbed by the skin. It's sometimes used to increase the body's absorption of other medications. DMSO is available without a prescription most often in gel or cream form.
Actual soil fertility is the amount of nutrients and moisture derived from the soil by the plants in a given year.
Therefore, the fertility of our soils is a critical indicator of the health of our agriculture and of our food, fiber, and fuel production capacity. Assessing Soil Fertility by Soil Tests. This is a report of the phosphorus (P) and potassium (K) fertility of the soils of North America. These two essential nutrients, along with nitrogen (N), are the most frequently limiting nutrients for crop production in North America and throughout the world.