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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Agronomic efficiency of NBPT as a urease inhibitor: A review

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Author(s):
Cantarella, Heitor [1] ; Otto, Rafael [2] ; Soares, Johnny Rodrigues [3] ; de Brito Silva, Aijanio Gomes [2]
Total Authors: 4
Affiliation:
[1] Agron Inst Campinas, Soils & Environm Resources Ctr, Ave Barao de Itapura 1481, BR-13020902 Campinas, SP - Brazil
[2] Univ Sao Paulo, Luiz de Queiroz Coll Agr, Av Padua Dias 11, BR-13418900 Piracicaba, SP - Brazil
[3] Univ Estadual Campinas, Sch Agr Engn, Av Candido Rondon 501, BR-13083875 Campinas, SP - Brazil
Total Affiliations: 3
Document type: Review article
Source: JOURNAL OF ADVANCED RESEARCH; v. 13, n. SI, p. 19-27, SEP 2018.
Web of Science Citations: 17
Abstract

Urea is the most widely used nitrogen (N) fertilizer, with a projected increase in annual demand of 1.5% in the coming years. After its application to soil, urea undergoes hydrolysis via the urease enzyme, causing increases in the soil pH in the surrounding area of the granules and resulting in NH3 losses that average 16% of N applied worldwide and can reach 40% or more in hot and humid conditions. The use of urease inhibitors is an effective way to reduce NH3 losses. Several compounds act as urease inhibitors, but only N-(n-butyl) thiophosphoric triamide (NBPT) has been used worldwide, being the most successful in a market that has grown 16% per year in the past 10 years. Only in the past three years other compounds are being commercially launched. In comparison to urea, NBPT-treated urea reduces NH3 loss by around 53%. Yield gain by NBPT usage is of the order of 6.0% and varies from -0.8 to 10.2% depending on crop species. Nitrification inhibitors usually increase NH3 volatilization and mixing them with urease inhibitors partially offsets the benefits of the latter in reducing NH3 loss. The efficacy of NBPT to reduce NH3 loss is well documented, but there is a need for further improvement to increase the period of inhibition and the shelf life of NBPT-treated urea. (C) 2018 Production and hosting by Elsevier B.V. on behalf of Cairo University. (AU)

FAPESP's process: 13/50365-5 - Microbial networks in control of greenhouse gases emissions in biobased agriculture - MiniBag
Grantee:Heitor Cantarella
Support type: Program for Research on Bioenergy (BIOEN) - Regular Program Grants
FAPESP's process: 15/50305-8 - A virtual joint centre to deliver enhanced nitrogen use efficiency via an integrated soil-plant systems approach for the UK & Brazil
Grantee:Ciro Antonio Rosolem
Support type: Research Projects - Thematic Grants
FAPESP's process: 14/05591-0 - Effect of Crotalaria rotation and trash removal in soil N transformations and sugarcane response to N fertilization
Grantee:Rafael Otto
Support type: Program for Research on Bioenergy (BIOEN) - Regular Program Grants
FAPESP's process: 14/26767-9 - Global Sustainable Bioenergy initiative: geospatial & environmental analysis of pastureland intensification for bioenergy
Grantee:John Joseph Sheehan
Support type: Research Projects - SPEC Program
FAPESP's process: 16/08741-8 - Post Doc on pasture systems: potential for intensification around the globe
Grantee:Johnny Rodrigues Soares
Support type: Scholarships in Brazil - Post-Doctorate