Humic acid is a principal component of humic substances, which are the major organic constituents of soil (humus), peat, coal, many upland streams, dystrophic lakes, and ocean water.t is produced by biodegradation of dead organic matter. It is not a single acid; rather, it is a complex mixture of many different acids containing carboxyl and phenolate groups so that the mixture behaves functionally as a dibasic acid or, occasionally, as a tribasic acid.
Noteworthy Characteristics. Picea abies, commonly called Norway spruce, is a large pyramidal evergreen conifer that is native to the mountains of northern and central Europe east to the Urals. In its native European habitat, it typically matures to 100-150' (occasionally to 200') tall.
When fully mature, Colorado blue spruce trees can reach a width of 15 feet in diameter. With its top-tapering pyramid shape, the Colorado blue spruce grows about a 1/2 inch a year in diameter. As a very large tree, Colorado blue spruce requires significant spacing for it to thrive.