acumulation

Updated: May 20, 2025

Of course this applies at first only to the mineral plant foods, as phosphorus potassium, magnesium, and calcium. While mineral supplies are abundant in the surface soil, there may be a large acumulation of organic matter and nitrogen, especially because of the growth of wild legumes, which are very numerous and in places very abundant, especially on some of the virgin prairies of the West.

Cyril G. (Cyril George) Hopkins - The Story of the Soil; from the Basis of Absolute Science and Real Life,