N-butyl thiophosphoryl triamine (NBPT, hereafter referred to as “NBPT”) is one of the most effective soil urease inhibitors. Under normal use, agricultural fertilizers, mainly nitrogen fertilizer, are quickly decomposed by urease in the soil, which not only wastes a lot of nitrogen fertilizer resources, increases the cost of crop production, but also brings a series of problems such as soil compaction and environmental pollution. Adding urease inhibitors to nitrogen fertilizer is a new technology developed at the end of the last century. NBPT can inhibit and slow release. On the one hand, NBPT can effectively slow down the enzymatic hydrolysis process of nitrogen fertilizer decomposition into ammonia, reduce waste, and extend the diffusion time of nitrogen fertilizer at the fertilization point, so that the soil fertilizer supply and crop fertilizer demand can be synchronized. Thus, the effective utilization rate of nitrogen fertilizer is increased by 30% to 40%, and the fertilizer efficiency can be increased from 50 days to about 120 days. Cover almost the entire growing season of the crop. It is completely possible not to use secondary topdressing. It is very effective for long growing crops such as trees and corn.
As a soil nitrogenase inhibitor, NBPT is highly efficient, non-toxic, and has no side effects on soil. NBPT is naturally degraded into ammonia and phosphorus in soil, and can also be absorbed by crop roots as fertilizer. NBPT also reduces the toxic effect of ammonia on seed germination and seedling growth, and is an excellent soil nitrogenase inhibitor.