(N-butyl)thiophosphoric triamide/NBPT

Urease inhibitor is a kind of substance that can inhibit the activity of soil urease, and it is a new technology which has been studied in urea or nitrogen compound fertilizer. Using soil urease inhibitor can effectively slow decomposition of urea into ammonia process, reduce soil NH4 + and NH3 concentration, soil fertility and crop fertilizer synchronization.

NBPT(cas is the most effective inhibitor of soil urease. Positive butyl thiophosphoric triamide as inhibitors of soil urease, efficient, non-toxic, on soil without side effects, and in the soil in the natural decomposition of ammonia and ammonium phosphate. NBPT can increase the efficiency of urea N by 30%.

NBPT can by urea use 3-5 millionth of the amount of the proportion of flux of dissolved directly mixed with urea applied to the soil, can also according to a proper proportion through a certain preparation process growth effect of slow release compound fertilizer. This kind of long-term fertilizer containing NBPT is mainly used in the field crops and some growing vegetables, orchards, trees, corn, wheat, palm trees, etc.

N-Butylthiophosphoric triamide (NBPT) is currently one of the most effective soil urease inhibitors. Under normal use, agricultural fertilizers, mainly nitrogen fertilizers, are quickly decomposed by urease in the soil. This not only wastes a lot of nitrogen fertilizer resources, but also increases the cost of crop production, and brings a series of problems such as soil compaction and environmental pollution. The addition of urease inhibitor to nitrogen fertilizer is a new technology developed at the end of the last century. NBPT has the effect of inhibiting and slow release. On the one hand, it can effectively slow down the enzymatic hydrolysis process of nitrogen fertilizer into ammonia to reduce waste. And at the same time it can prolong the diffusion time of nitrogen fertilizer at the fertilization point, so that soil fertilization and crop fertilizer need can be synchronized. Thereby the effective utilization rate of nitrogen fertilizer increase by 30%~ 40%, and the fertilizer efficiency can be increased from 50 days to 120 days. It covers almost the entire growth period of the crop. It is completely possible not to use secondary top dressing. It is very effective for growing crops such as trees and corn.

As a soil nitrogen fertilizer inhibitor, NBPT is highly efficient, non-toxic and has no side effects on the soil. Moreover, NBPT naturally degrades into ammonia and phosphorus in the soil, and can also be absorbed as fertilizer by crop roots, and reduces the toxic effect of ammonia on seed germination and seedling growth. It is an excellent soil nitrogen fertilizer inhibitor.

Specification of N-(N-butyl) thiophosphoric triamide

Product name

N-(N-butyl)thiophosphoric triamide; NBPT; NBTPT





Molecular weight

Melting point

56-60 ° C




25kg/Cardboard drum or kraft paper bag; 500kg/jumbo bag


White crystalline powder

Loss on Drying




Molecular Formula


country of origin



Urease Inhibitor

Other names


Brand name


Payment Term

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