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Cyclotriphosphazatriene-derivatives as soil urease activity inhibitors |
| T105605 |
Cyclotriphosphazatriene-derivatives as soil urease activity inhibitors
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| Inventor: |
Medina, et al. |
| Date Issued: |
July 2, 1985 |
| Application: |
06/625,424 |
| Filed: |
June 28, 1984 |
| Inventors: |
Medina; Ramiro (Sheffield, AL)
Sullivan; Jack M. (Florence, AL)
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| U.S. Class: |
423/302; 435/168; 435/227; 558/80 |
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| Abstract: |
Tests show that 2,2,4,4,6,6-hexaaminocyclotriphosphazatriene, 2-phenoxy-2,4,4,6,6-pentaaminocyclotriphosphazatriene, 2,4-diphenoxy-2,4,6,6-tetraaminocyclotriphosphazatriene and 2,4,6-triphenoxy-2,4,6-triaminocyclotriphosphazatriene (also frequently called phosphonitrilic derivatives) of the formula ##STR1## are highly effective inhibitors of urease activity in agricultural soil systems wherein(1) R.sub.1 . . . R.sub.3 '=NH.sub.2 or(2) R.sub.1 '=R.sub.2 '=R.sub.3 '=R.sub.2 =R.sub.3 =NH.sub.2 and R.sub.1 =OC.sub.6 H.sub.5 or(3) R.sub.1 '=R.sub.2 '=R.sub.3 '=R.sub.3 =NH.sub.2 and R.sub.1 =R.sub.2 =OC.sub.6 H.sub.5 or(4) R.sub.1 '=R.sub.2 '=R.sub.3 '=NH.sub.2 and R.sub.1 =R.sub.2 =R.sub.3 =OC.sub.6 H.sub.5The above-mentioned compounds and mixtures of the compounds show sustained inhibition of the soil urease activity for periods of at least 21 days. |
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