IN-VITRO RETENTION OF DIFFERENT 15N SOURCES AT BIOCHAR
Klaus-P. Götz, Klaus D. Wutzke
Pagini: 27-33
Publicat: 18 Sep 2021
Vizualizări: 1,755
Descărcări: 162
Rezumat: Biochar, which can be used for improving soil fertility, is a carbon rich, heterogeneous, and chemically complex material. It is known that biochar ab/adsorbs nutrients, but there is still a lack of knowledge regarding these effects. To investigate the ability of biochar to adhere nitrogen an in-vitro experiment was conducted. Different inorganic (ammonium, nitrate, and ammonium nitrate) and organic 15N sources (urea; valine, phenylalanine, isoleucine, and glutamic acid; also yeast protein as a high molecular weight compound) were added to Pyro-biochar and to HTC-biochar to estimate retention after 15 and 30 days, and also to examine the effect of washing on 15N. The 15N in-vitro retention (%) of 15N-inorganic and 15N-organic substances at Pyro-BC and HTC-BC, at days 15 and 30, was less than 10% for both biochar’s. This amount could substance specific clearly reduced by washing. The high molecular weight 15N yeast protein adhered to 30% for HTC-biochar, which was 3-fold higher than for Pyro-biochar. Therefore, the manufacturing process of the two biochar’s had a significant impact on in-vitro retention. The functional groups, and therefore Van-der-Waals-interactions, chemical reaction, the affiliation of amino acids and the molecular size of compounds, such as yeast protein, can affect the 15N retention of these substances.
Cuvinte cheie: 15n technique, pyro-biochar, htc-biochar, 15n retention
Citează acest articol: Klaus-P. Götz, Klaus D. Wutzke. IN-VITRO RETENTION OF DIFFERENT 15N SOURCES AT BIOCHAR. Journal of International Scientific Publications: Agriculture & Food 9, 27-33 (2021). https://www.scientific-publications.net/en/article/1002139/
Înapoi la cuprinsul volumului
© 2026 The Author(s). This is an open access article distributed under the terms of the
Creative Commons Attribution License https://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. This permission does not cover any third party copyrighted material which may appear in the work requested.
Disclaimer: The Publisher and/or the editor(s) are not responsible for the statements, opinions, and data contained in any published works. These are solely the views of the individual author(s) and contributor(s). The Publisher and/or the editor(s) disclaim any liability for injury to individuals or property arising from the ideas, methods, instructions, or products mentioned in the content.
