SPECTRAL CHARACTERISTICS OF A HUMIC ACID FRACTIONATED WITH RESPECT TO MOLECULAR WEIGHT USING AN AGAR GEL
- 1 August 1970
- journal article
- research article
- Published by Wolters Kluwer Health in Soil Science
- Vol. 110 (2) , 93-99
- https://doi.org/10.1097/00010694-197008000-00003