Use of nitrification inhibitor DMPP to improve nitrogen recovery in irrigated wheat on a calcareous soil

Abstract

The 3,4-dimethyilpyirazole phosphate (DMPP), commercialized as Entec, is a nitrification inhibitor developed by BASF (Germany) that may help to minimize N losses and to obtain a higher profit from N fertilizers. A two-year field trial was established in 2001 in the Northeast of Spain to assess the effects of DMPP on N use efficiency (NUE) and to determine the economic returns. Seven treatments have been carried out comparing the effect of DMPP on pig slurry and on mineral fertilizers. The application of DMPP resulted in better efficiency indexes on mineral fertilizers. An apparent nitrogen recovery of 0.465 kg kg-1, on average, was obtained for the Entec treatment. A net benefit of € 809 ha-1, on average, was obtained for the Entec treatment compared with € 607 ha-1 for the control treatment. The results of this study suggest that the nitrification inhibitor could improve farmer profit in irrigated wheat on a calcareous soil.

Splitting the application of 3,4-dimethylpyrazole phosphate (DMPP): Influence on greenhouse gases emissions and wheat yield and quality under humid Mediterranean conditions

“…Concerning winter wheat yield, the use of DMPP has shown different responses. While several authors (Carrasco and Villar, 2001;Weiske et al, 2001;Arregui and Quemada, 2008;Polychronaki et al, 2012) did not find significant effects of DMPP application on grain yield in irrigated and rainfed areas, Pasda et al (2001) and Villar and Guillaumes (2010) described a yield increase of 3.1% and 10.2%, respectively. Furthermore, very little research has been conducted regarding the effect of the DMPP on wheat grain quality, which is mainly determined by its protein content.…”

Ammonium fixation and release by clay minerals as influenced by potassium

“…Different letters indicate significant differences (P < 0.05) among the treatments. K rate: K1 -250 mg/kg soil; K2 -500 mg/kg soil; N form: NaNO 3 -sodium nitrate; AS -ammonium sulfate; ENTEC 26 -ammonium sulfate nitrate + 3,4-dimethylpyrazol phosphate; ASN -ammonium sulfate nitrate; time of K application: simultan, before and after to 8 weeks (Villar and Guillaumes 2010), is stronger the lighter the soil. When applying ammonium stabilized N fertilizers to heavy soils it must be recognized that at least a part of the NH 4 + ions may be fixed by clay minerals, decreasing the momentary N availability for plants.…”

Evaluation of fertilization with uncoated urea and 3,4-dimethylpyrazole phosphate (DMPP)-coated urea on nitrogen leaching and rose (Rosa spp.) yield

“…Currently, 3,4-dimethylpyrazole phosphate (DMPP) is one of the most known and used nitrification inhibitors in the N nutrition of crops during last decade (Zerulla et al, 2001). Several studies have demonstrated the positive effects of this molecule on the reduction of N losses (NH4 + -N and NO3 --N) in soil and leaching water (Serna et al, 2000;Li et al, 2008;Quiñones et al, 2009;Díez-López et al, 2008), increase of NUE (Villar and Guillaumes, 2010), and crop productivity (Irigoyen et al, 2006;Quiñones et al, 2009).…”