Techniques such as the use of N-(n-butyl) thiophosphoric acid triamide
(NBPT) can inhibit the urease activity and decrease N[H.sub.3]-N losses (Cantarella et al.
In an attempt to reduce nitrogen (N) losses through ammonia volatilization and nitrate leaching, the use of enzyme inhibitors (EI) such as N-(n-butyl) thiophosphoric triamide
(NBPT) and dicyandiamide (DCD) has been shown to be viable (Zaman et al., 2009; Dall'Orsoletta et al., 2017).
Kawasaki, "Thermodynamic properties of binary mixtures: hexamethylphosphoric triamide
+ a polar liquid at 25[degrees]C," Journal of Solution Chemistry, vol.
Paramasivam, Use of the Urease Inhibitor N-(N-butyl)Thiophosphoric Triamide
Decreased Nitrogen Leaching from Urea in a Fine Sandy Soil, Water Air Soil Pollution.
There were seven treatments: (N-butyl) thiophosphoric triamide
(NBPT) applied at rates of 0.00, 0.50, 0.75, 1.00, 1.25, 1.50% with urea @ 135 kg N ha-1 and CK (no NBPT or urea).
Jiao Bin synthesized the antistatic MC nylon-6 by addition of hexamethylphosphoric triamide
The treatments consisted of four nitrogen (N) rates in top-dressing (0, 50, 100, and 150 kg [ha.sup.-1]) and three urea-based fertilizers (A, B and C), with and without the urease inhibitor Thiophosphate N-n-butyl triamide
(NBPT) from two different suppliers.
Effects of the urease inhibitor N-(nbutyl) phosphorothioic triamide
in low concentrations on ammonia volatilization and evolution of mineral nitrogen.
N-(n-butyl) phosphoric triamide
and cyclohexylphosphoric triamide
(Chai and Bremner 1987; Keerthisinghe and Blakely 1995; Byrnes and Freney 1995), although hydroquinone and 2, 5-dimethyl p-benzoquinone can provide inhibition at high concentrations (Tomlinson 1970; Xu et al.
Twenty-five percent NaOH (2.5 ml) was added to a solution of caffeic acid (3,4-dihydroxycinnamic acid) (2.10 g) in HMPA (hexamethylphosphoric triamide
) (150 ml), and the mixture was stirred for 1 h under [N.sub.2] at room temperature.
Urease inhibitors such as NBPT (N-[nbutyl]thiophosphoric triamide
, trade name Agrotain[R]) inhibit urease activity in soil.