
TY  - JOUR
A1  - Irigoyen, Ignacio 
A1  - Muro, Julio 
A1  - Azpilikueta, Miren 
A1  - Aparicio-Tejo, Pedro 
A1  - Lamsfus, and Carmen 
T1  - Ammonium oxidation kinetics in the presence of nitrification inhibitors DCD and DMPP at various temperatures
JF  - Soil Research
JO  - Soil Res.
Y1  - 2003
VL  - 41
IS  - 6
SP  - 1177
EP  - 1183
KW  - N fertilisation, temperature.
UR  - https://doi.org/10.1071/SR02144 
N2  - Use of N-based fertilisers in combination with nitrification inhibitors lengthens N presence in the ammonium form in soil (N-NH4+), with beneficial effects for agriculture and related ecosystems. The efficiency of these inhibitors depends on several factors, the most important being soil temperature. This paper studies the effects of soil temperature on the kinetics of N-NH4+ loss in the presence of the DCD and DMPP nitrification inhibitors. For a 105-day period, 3 chambers, each with 12 containers holding 500 g of dry soil, were incubated at 10, 20, and 30°C. Ammonium sulfate was applied to 4 containers in each chamber; in another 4 containers Basammon Stabil, a N fertiliser with DCD, was used; and Entec 26, a fertiliser with DMPP, was used in the remaining 4 containers. Soil ammonium content was periodically determined for each container. Both DCD and DMPP lengthened ammonium presence in soil in a similar manner. However, their effectiveness was drastically decreased at increased soil temperatures. Thus, when using these inhibitors, soil temperature should be taken into account, especially in warm climate areas. 
ER  -

