Facebook
Twitter
YouTube
Instagram
    • español
    • English
  • Contacto
  • English 
    • español
    • English
  • Login

Inta Digital

Repositorio InstitucionalBiblioteca Digital
AboutAuthorsTitlesSubjectsCollectionsCommunities☰
JavaScript is disabled for your browser. Some features of this site may not work without it.
View Item 
    xmlui.general.dspace_homeCentros Regionales y EEAsCentro Regional Buenos Aires SurEEA BalcarceArtículos científicosxmlui.ArtifactBrowser.ItemViewer.trail
  • DSpace Home
  • Centros Regionales y EEAs
  • Centro Regional Buenos Aires Sur
  • EEA Balcarce
  • Artículos científicos
  • View Item

Delineation of management zones to improve nitrogen management of wheat

Abstract
Site-specific management of N (NSSM) is an attractive and intuitive approach to increasing N fertilizer use efficiency (NUE) of agricultural systems by adjusting fertilizer rates to the soil characteristics. The objective of this study is to assess: whether delineating of management zone (MZ) within fields improves NUE in wheat (Triticum aestivum L.). This research was carried out at 5 commercial fields (between 26 and 84 ha), located in the south-eastern [ver mas...]
Site-specific management of N (NSSM) is an attractive and intuitive approach to increasing N fertilizer use efficiency (NUE) of agricultural systems by adjusting fertilizer rates to the soil characteristics. The objective of this study is to assess: whether delineating of management zone (MZ) within fields improves NUE in wheat (Triticum aestivum L.). This research was carried out at 5 commercial fields (between 26 and 84 ha), located in the south-eastern portion of the Province of Buenos Aires, Argentina. The MZ were delineated by using georeferenced measurements of apparent soil electrical conductivity, terrain elevation and soil depth. Spatially referenced wheat yields were recorded with a yield monitor equipped with DGPS. The interaction effect was significant (p < 0.05) in most fields, thus indicating that the response to N fertilization is different among MZ. Also, NUE was significantly different (p < 0.05) among MZ. The detection of soil spatial variability and the delineation of MZ are now possible on a commercial scale. The delineation of MZ affords the opportunity of variable rate application of N fertilizers on Typic Argiudolls and Petrocalcic Paleudolls, and the minimization of pollution risk due to an excessive application of resources. [Cerrar]
Thumbnail
Author
Peralta, Nahuel;   Costa, Jose Luis;   Balzarini, Mónica Graciela;   Castro Franco, Mauricio;   Córdoba, Mariano Augusto;   Bullock, Donald;  
Fuente
Computers and electronics in agriculture 110 : 103-113. (January 2015)
Date
2015-01
ISSN
0168-1699
URI
https://www.sciencedirect.com/science/article/pii/S0168169914002786
http://hdl.handle.net/20.500.12123/2633
DOI
https://doi.org/10.1016/j.compag.2014.10.017
Formato
pdf
Tipo de documento
artículo
Derechos de acceso
Restringido
Descargar
Compartir
  • Compartir
    Facebook Email Twitter Mendeley
Excepto donde se diga explicitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Metadata
Show full item record