US 12,006,272 B1
Nitrogen activator stabilizer for reducing and protecting nitrogen fertilizer
Hossam El-Din Saad El-Beltagi, Al-Ahsa (SA); Khaled Mohamed Amen Ramadan, Al-Ahsa (SA); Hani Saber Sayed Saudy, Al-Ahsa (SA); and Sameh Ahmed Rizk, Al-Ahsa (SA)
Assigned to KING FAISAL UNIVERSITY, Al-Ahsa (SA)
Filed by KING FAISAL UNIVERSITY, Al-Ahsa (SA)
Filed on Jan. 29, 2024, as Appl. No. 18/425,949.
Application 18/230,985 is a division of application No. 18/144,332, filed on May 8, 2023.
Application 18/425,949 is a continuation in part of application No. 18/230,985, filed on Aug. 7, 2023, abandoned.
Int. Cl. A01C 21/00 (2006.01); C05B 7/00 (2006.01); C05C 9/00 (2006.01); C05G 1/00 (2006.01); C05G 3/40 (2020.01); C05G 5/18 (2020.01); C05G 5/30 (2020.01); C07D 473/30 (2006.01)
CPC C05G 3/44 (2020.02) [A01C 21/00 (2013.01); C05B 7/00 (2013.01); C05C 9/005 (2013.01); C05G 1/00 (2013.01); C05G 5/18 (2020.02); C05G 5/38 (2020.02); C07D 473/30 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method of fertilizing crops, comprising applying a nitrogen activator stabilizer fertilizer (NASF1) composition to said crops; the composition comprising a coated slow-release fertilizer composition comprising:
a core comprising a nitrogen-based fertilizer; and
at least one coating layer surrounding the core, wherein the at least one coating layer comprises a potassium compound, chitosan, and 2-(1-(4-(dimethylamino)butyl)-8-((2-ethoxy-2-oxoethyl)thio)-6-oxo-6,9-dihydro-1H-purin-2-yl)-6-nitrobenzoic acid (ABT-PNB), with the ABT-PNB having the following structure:

OG Complex Work Unit Chemistry