The Efficiency of Stabilized Fertilizers in Reducing Ammonia Loss Is Influenced by Liming Method. Issue 12 (4th July 2022)

• Record Type: Journal Article
• Authors: Besen, Marcos Renan; Minato, Evandro Antonio; Cassim, Bruno Maia Abdo Rahmen; Macon, Celso Rafael; Zampar, Eder Junior de Oliveira; Inoue, Tadeu Takeyoshi; Batista, Marcelo Augusto
• Is Part Of: Communications in soil science and plant analysis. Volume 53:Issue 12(2022)
• Page Start: 1552
• Page End: 1564
• Publication Date: 2022-07-04
• Subjects: Volatilization -- nonlinear model -- urea -- NBPT; Soil science -- Periodicals; Plants -- Chemical analysis -- Periodicals; Agricultural chemistry -- Periodicals; 631.405
• DOI: 10.1080/00103624.2022.2060248
• Languages: English
• ISSNs: 0010-3624

Abstract

ABSTRACT: Urea is the most used nitrogen (N) fertilizer worldwide, but its rapid hydrolysis on the soil surface results in N loss in the form of ammonia (NH3 -N). Enzyme inhibitors have been investigated for their ability to reduce NH3 -N volatilization, particularly from no-till and surface-limed soils. This study assessed the efficiency of stabilized fertilizers in reducing NH3 -N volatilization under different lime rates and application methods. The experiment followed a 2 × 4 × 3 factorial design, with two liming methods (surface application and incorporation), four base saturation levels (50, 60, 70, and 90%), and three urea (45% N) sources: conventional urea, urea + N -( n -butyl)-Thiophosphoric triamide (NBPT), and urea + Boron (B) + Copper (Cu). NH3 -N volatilization losses varied from 9.15 to 20.43 kg ha −1, accounting for 11.4 to 25.5% of the applied N rate. Base saturation did not influence NH3 -N volatilization. Liming method, however, had a significant effect. Urea + B + Cu was effective in reducing volatilization loss only in soils ameliorated by lime incorporation (23% reduction compared with conventional urea). Urea + NBPT was effective in surface-limed and incorporated soils (up to 55.5% reduction). The results showed that soil management influences the efficiency of stabilized fertilizers and that urea + NBPT provides the best results.