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| Titel: |
Nitrification inhibitors - Interaction with applied ammonium concentration |
| Auteur: |
Glasscock, Jena Shaviv, Abraham Hagin, Josef |
| Verschenen in: |
Journal of plant nutrition |
| Paginering: | Jaargang 18 (1995) nr. 1 pagina's 105-116 |
| Jaar: |
1995-01 |
| Inhoud: |
Soil samples of 50 g clay, clay loam and sandy loam were amended with ammonium sulphate giving 25, 50, 100, 200, and 400 mg nitrogen (N)/kg and with two nitrification inhibitors, Dicyandiamide (DCD) and N-Serve (N-S) each at two levels calculated relative to the N applied, 1 and 5%, and 0.5 and 1%, respectively. Water was added to moisture field capacity and the samples were incubated at 30°C for 7, 14, 28, and 56 days, each treatment and timing in three replicates. The lower level of application of nitrification inhibitors was not effective. Nitrate-N (NO3-N) recovery peaked at 28 days and did not change appreciably later, except the 1% N-S treatments where a flush of NO3 appeared at the 56th sampling day. The nitrification inhibitory effects of the two inhibitors were enhanced at the 200 and 400 mg/kg ammonium-N (NH4-N) application in all three soils. Nitrification inhibition was not related to salt concentrations as measured by electrical conductivity. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 8 van 15 gevonden artikelen
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