Glossary

Bibliography

Glossary

"Aqua Humus" is the brand name of the commercial compounds of inorganic fertilizer salts and humic acids, marketed by American Humates, Inc. They consist largely of humates plus some free humic acids derived from leonardite.

Humates are the salts of humic acids, collective, or the salts of humic acid, specifically. (The usage must be determined from the context.)

Humic acid (singular) is the acid radical found in humic matter which is soluble in alkali, but insoluble in acid, methyl ethyl ketone and methyl alcohol.

Humic acids (plural) is the collective name for the acid radicals found in humic matter. They may be separated from humic matter by alkaline extraction.

Humic matter is completely decomposed organic matter and it is readily soluble in acids or bases.

Humin is the alkali insoluble fraction of leonardite. (This usage of the term does not correspond exactly with the usage by other workers.)

Humus is the product of the decay of organic matter. It contains both humic and non-humic material.

Leonardite is a soft brown coal-like deposit usually found in conjunction with deposit of lignite.

Lignite is a type of soft coal.

Non-humic matter is relatively undecomposed organic matter and is relatively insoluble.

Bibliography

Acock, B., Senn, T.L., The Effect of Humic Acids on the Growth of Tomato Plants and the Physical Properties of Sand and Sandy Loam Soils, Research Series Number 54, South Carolina Agricultural Experiment Station, Clemson University, 1964

Aitken, J.B., Acock, B., The Physiological Effect of Humic Acids. Proc. Assoc. South. Agr. Workers 61st Ann. Conv., 1964.

Aitken, J.B., Acock, B., and Senn, T.L., The Characteristics and Effects of Humic Acids Derived From Leonardite, Technical Bulletin 1015, South Carolina Agricultural Experiment Station, Clemson University, 1964.

Crawford, J.H., Senn, T.L., and Stembridge, G.E., the Influence of Humic Acid Fractions on Sprout Production and Yield of the Caragold Sweet Potato, Technical Bulletin 1028, South Carolina Agricultural Experiment Station, Clemson University, 1968.

Flaig, B., et al., Soil Components, vol. 1, J.E.Gieseking, Ed., Springer, New York, 1975.

Khristeva, L.A. and Manoilova, A., The Nature of the Direct Effect of Humic Acids on the Growth and Development of Plants, Translated abstract in Commonwealth Bureau of Soils Bibliography on Humate Fertilizers , 1950.

Kimbro, W., and Waer, G.D., Formulations of Katy-J Multi-Plex Products, JKT Corporation., 1985, 1995.

Kononova, M.M. , Soil Organic Matter: Its Role in Soil Formation and in Soil Fertility, Translated From the Russian by T.Z. Nowakowski and G.A. Greenwood., 1961.

Martin, J.A. and Senn, T.L., The Influence of Various Rates of Nitrogen and Humic Acid Derivatives on the Growth and Yield of Greenhouse Tomatoes, Research Series Number 95, South Carolina Agricultural Experiment Station, Clemson University, 1967.

Martin, J.A., Senn, T.L., Crawford, J.H., and Moore, M.D., Influence of Humic and Fulvic Acids on the Growth, Yield, and Quality of Certain Horticultural Crops, Research Series Number 30 , South Carolina Agricultural Experiment Station, Clemson University, 1962.

Schnitzer, M. and Poapst, P.A., Effects of a Soil Humic Compound on Root Initiation, Nature, Volume 213, No. 5076, 1965.

Senn, T.L., Stembridge, G.E., Sims, E.T., and Crawford, J.H., Effect of Humic Acid Derivatives on the Conversion of Ammonium Nitrogen in Sandy Loam Soil, Research Series Number 96 , South Carolina Agricultural Experiment Station, Clemson University, 1967.

Sims, E.T. Jr., Crawford, J.H., Martin, J.A., and Senn, T.L., A Comparison of the Quality of Several Vegetables Fertilized with Humic Acid Fractions and Inorganic Materials, Research Series Number 47, South Carolina Agricultural Experiment Station, Clemson University, 1963.