Effects of urease and nitrification inhibitors on soil N, nitrifier abundance and activity in a sandy loam soil
| Autor: | Ian M. Clark, Tom Misselbrook, Aimeric Blaud, Maïder Abadie, Alison Carswell, Qingling Fu, Penny R. Hirsch |
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| Rok vydání: | 2019 |
| Předmět: |
Soil microbial diversity
Urease Ammonium nitrate Soil Science engineering.material Microbiology Urea fertilizer 03 medical and health sciences chemistry.chemical_compound Ammonia 030304 developmental biology 2. Zero hunger Original Paper 0303 health sciences biology Chemistry Urease inhibitor 04 agricultural and veterinary sciences Ammonia monooxygenase Urea fertilizer Urease inhibitor Nitrification inhibitor Arable soil Soil microbial diversity Nitrification genes Nitrification inhibitor 6. Clean water Agronomy Loam 040103 agronomy & agriculture engineering Urea biology.protein 0401 agriculture forestry and fisheries Nitrification Nitrification genes Fertilizer Arable soil Agronomy and Crop Science |
| Zdroj: | Biology and Fertility of Soils |
| ISSN: | 1432-0789 0178-2762 |
| DOI: | 10.1007/s00374-019-01411-5 |
| Popis: | Inhibitors of urease and ammonia monooxygenase can limit the rate of conversion of urea to ammonia and ammonia to nitrate, respectively, potentially improving N fertilizer use efficiency and reducing gaseous losses. Winter wheat grown on a sandy soil in the UK was treated with urea fertilizer with the urease inhibitor N-(n-butyl) thiophosphoric triamide (NBPT), the nitrification inhibitor dicyandiamide (DCD) or a combination of both. The effects on soil microbial community diversity, the abundance of genes involved in nitrification and crop yields and net N recovery were compared. The only significant effect on N-cycle genes was a transient reduction in bacterial ammonia monooxygenase abundance following DCD application. However, overall crop yields and net N recovery were significantly lower in the urea treatments compared with an equivalent application of ammonium nitrate fertilizer, and significantly less for urea with DCD than the other urea treatments. Electronic supplementary material The online version of this article (10.1007/s00374-019-01411-5) contains supplementary material, which is available to authorized users. |
| Databáze: | OpenAIRE |
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