English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/35562
Share/Impact:
Statistics
logo share SHARE   Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Title

Comparison of nitrification inhibitors to restrict nitrate leachin in a maize crop irrigated under mediterranean conditions

AuthorsDíez López, José Antonio ; Arauzo, Mercedes ; Hernáiz, Pedro J. ; Sanz, A. ; Vallejo, A.
KeywordsDicyandiamide
Dimethylpyrazolephosphate
N fertilization
Split N application
Issue Date2010
PublisherInstituto Nacional de Investigación y Tecnología Agraria y Alimentaria (España)
CitationSpanish Journal of Agricultural Research 8(2): 481-492 (2010)
AbstractThe aim of this paper was to compare dicyandiamide (DCD) and 3,4 dimethylpyrazole phosphate (DMPP) as inhibitors of ammonium oxidation and nitrate leaching after applying fertilizer to a maize (Zea mays L.) crop grown under Mediterranean conditions. The effects of nitrification inhibitors were also compared to those of N fertilization without inhibitors and with split N application. In plots fertilized with ammonium sulphate nitrate (ASN), either DCD or DMPP lengthened ammonium presence in soil and produced lower soil NO3 – concentrations (30% lower than in plots with no inhibitor). The use of DCD or DMPP achieved significant reductions in nitrate leaching. DCD showed excellent properties for controlling nitrate leaching, taking into account the fact that grain yield and N accumulated by plant were similar for the ASN-DCD and ASN treatments applied at the same N doses. The split N treatment did not offer any advantages in terms of leached nitrate, either with the use of single ammonium sulphate nitrate (ASN) or with single application of nitrification inhibitors. The nitrification inhibitors did not increase the yield but did not reduce it either. The drainage rate was the most important component of nitrate leaching. The low drainage values of the first year resulted in a sharp decline of nitrate leaching. However, the experiment of the second year, showed clear differences in nitrate leaching between treatments due to the greater drainage.
Description12 pages, figures, and tables statistics.
URIhttp://hdl.handle.net/10261/35562
ISSN1695-971X
Appears in Collections:(ICA) Artículos
Files in This Item:
File Description SizeFormat 
Díez'10 Comparison_nitrification inhibtors_ SJAR.pdf147,17 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.