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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
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dc.contributor.author | Peralta, Nahuel | |
dc.contributor.author | Costa, Jose Luis | |
dc.contributor.author | Balzarini, Mónica Graciela | |
dc.contributor.author | Castro Franco, Mauricio | |
dc.contributor.author | Córdoba, Mariano Augusto | |
dc.contributor.author | Bullock, Donald | |
dc.date.accessioned | 2018-06-15T13:29:19Z | |
dc.date.available | 2018-06-15T13:29:19Z | |
dc.date.issued | 2015-01 | |
dc.identifier.issn | 0168-1699 | |
dc.identifier.other | https://doi.org/10.1016/j.compag.2014.10.017 | |
dc.identifier.uri | https://www.sciencedirect.com/science/article/pii/S0168169914002786 | |
dc.identifier.uri | http://hdl.handle.net/20.500.12123/2633 | |
dc.description.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 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. | eng |
dc.format | application/pdf | eng |
dc.language.iso | eng | |
dc.rights | info:eu-repo/semantics/restrictedAccess | eng |
dc.source | Computers and electronics in agriculture 110 : 103-113. (January 2015) | es_AR |
dc.subject | Trigo | es_AR |
dc.subject | Wheat | eng |
dc.subject | Nitrógeno | es_AR |
dc.subject | Nitrogen | eng |
dc.subject | Aplicación de Abonos | es_AR |
dc.subject | Fertilizer Application | eng |
dc.subject | Suelo | es_AR |
dc.subject | Soil | eng |
dc.title | Delineation of management zones to improve nitrogen management of wheat | es_AR |
dc.type | info:ar-repo/semantics/artículo | es_AR |
dc.type | info:eu-repo/semantics/article | eng |
dc.type | info:eu-repo/semantics/publishedVersion | eng |
dc.description.origen | EEA Balcarce | es_AR |
dc.description.fil | Fil: Peralta, Nahuel Raúl. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina | es_AR |
dc.description.fil | Fil: Costa, Jose Luis. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina | es_AR |
dc.description.fil | Fil: Balzarini, Mónica Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Cordoba. Facultad de Ciencias Agropecuarias; Argentina | es_AR |
dc.description.fil | Fil: Castro Franco, Mauricio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina | es_AR |
dc.description.fil | Fil: Córdoba, Mariano Augusto. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Agropecuarias; Argentina | es_AR |
dc.description.fil | Fil: Bullock, Donald. University of Illinois. Department of Crop Sciences; Estados Unidos | es_AR |
dc.subtype | cientifico |
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