Nitrogen diagnosis for double-cropped maize
Double cropping has been proposed as a strategy to promote ecological intensification. In temperate regions, maize (Zea mays L.) could be a viable option for double cropping. However, there is a lack of information regarding how maize adapts to the environmental and edaphic conditions that late sowi...
| Autores principales: | , , , , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
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Elsevier
2022
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/13376 https://www.sciencedirect.com/science/article/pii/S1161030122001484 https://doi.org/10.1016/j.eja.2022.126600 |
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| author | Crespo, Cecilia Martinez, Dionisio Roberto Wyngaard, Nicolás Divito, Guillermo Martinez Cuesta, Nicolás Barbieri, Pablo |
| author_browse | Barbieri, Pablo Crespo, Cecilia Divito, Guillermo Martinez Cuesta, Nicolás Martinez, Dionisio Roberto Wyngaard, Nicolás |
| author_facet | Crespo, Cecilia Martinez, Dionisio Roberto Wyngaard, Nicolás Divito, Guillermo Martinez Cuesta, Nicolás Barbieri, Pablo |
| author_sort | Crespo, Cecilia |
| collection | INTA Digital |
| description | Double cropping has been proposed as a strategy to promote ecological intensification. In temperate regions, maize (Zea mays L.) could be a viable option for double cropping. However, there is a lack of information regarding how maize adapts to the environmental and edaphic conditions that late sowing entails. Since nitrogen (N) is considered the most limiting yield factor for maize, the aim of this study was to assess double-cropped maize response to N fertilization in Mollisols from humid temperate regions. Eleven field experiments were conducted in the Southeastern Argentinean Pampas from 2018 to 2021. Five fixed N rates (0, 30, 60, 90, and 120 kg N ha-1) were evaluated at each site. Relative chlorophyll meter reading (CMR) at silking, grain yield, N content in grains, and grain number and weight responded to N fertilization in most sites. In responsive sites, the evaluated parameters were affected up to a 60 kg N ha-1 rate. Relative CMR accurately predicted variations in maize grain yield (R2 = 0.58). Contrarily, soil parameters (initial mineral N availability, ammonium-N released during a short anaerobic incubation, soil organic matter) were not associated to maize grain yield nor to its components. However, the N availability was associated with relative grain yield through a quadratic model, where initial N availability + Fertilizer N explained 67% of relative grain yield variability. Our results indicate that, although double-cropped maize productive potential is lower than obtained at early sowing dates, it responds to N fertilization, and its evaluation through the CMR contributes to a correct diagnosis to maximize yields. |
| format | info:ar-repo/semantics/artículo |
| id | INTA13376 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | INTA133762022-11-10T14:40:10Z Nitrogen diagnosis for double-cropped maize Crespo, Cecilia Martinez, Dionisio Roberto Wyngaard, Nicolás Divito, Guillermo Martinez Cuesta, Nicolás Barbieri, Pablo Aplicación de Abonos Granos Clorofilas Maíz Nitrógeno Fertilizeer Application Grain Chlorophylls Maize Nitrogen Double cropping has been proposed as a strategy to promote ecological intensification. In temperate regions, maize (Zea mays L.) could be a viable option for double cropping. However, there is a lack of information regarding how maize adapts to the environmental and edaphic conditions that late sowing entails. Since nitrogen (N) is considered the most limiting yield factor for maize, the aim of this study was to assess double-cropped maize response to N fertilization in Mollisols from humid temperate regions. Eleven field experiments were conducted in the Southeastern Argentinean Pampas from 2018 to 2021. Five fixed N rates (0, 30, 60, 90, and 120 kg N ha-1) were evaluated at each site. Relative chlorophyll meter reading (CMR) at silking, grain yield, N content in grains, and grain number and weight responded to N fertilization in most sites. In responsive sites, the evaluated parameters were affected up to a 60 kg N ha-1 rate. Relative CMR accurately predicted variations in maize grain yield (R2 = 0.58). Contrarily, soil parameters (initial mineral N availability, ammonium-N released during a short anaerobic incubation, soil organic matter) were not associated to maize grain yield nor to its components. However, the N availability was associated with relative grain yield through a quadratic model, where initial N availability + Fertilizer N explained 67% of relative grain yield variability. Our results indicate that, although double-cropped maize productive potential is lower than obtained at early sowing dates, it responds to N fertilization, and its evaluation through the CMR contributes to a correct diagnosis to maximize yields. EEA Balcarce Fil: Crespo, Cecilia. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Fil: Crespo, Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Martínez, Roberto Dionisio. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Fil: Wyngaard, Nicolás. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Fil: Wyngaard, Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Divito, Guillermo. Asociación Argentina de Productores en Siembra Directa; Argentina. Fil: Martínez Cuesta, Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Barbieri, Pablo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Fil: Barbieri, Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. 2022-11-10T14:35:49Z 2022-11-10T14:35:49Z 2022-10 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/13376 https://www.sciencedirect.com/science/article/pii/S1161030122001484 1161-0301 https://doi.org/10.1016/j.eja.2022.126600 eng info:eu-repo/semantics/restrictedAccess application/pdf Elsevier European Journal of Agronomy 140 : 126600 (October 2022) |
| spellingShingle | Aplicación de Abonos Granos Clorofilas Maíz Nitrógeno Fertilizeer Application Grain Chlorophylls Maize Nitrogen Crespo, Cecilia Martinez, Dionisio Roberto Wyngaard, Nicolás Divito, Guillermo Martinez Cuesta, Nicolás Barbieri, Pablo Nitrogen diagnosis for double-cropped maize |
| title | Nitrogen diagnosis for double-cropped maize |
| title_full | Nitrogen diagnosis for double-cropped maize |
| title_fullStr | Nitrogen diagnosis for double-cropped maize |
| title_full_unstemmed | Nitrogen diagnosis for double-cropped maize |
| title_short | Nitrogen diagnosis for double-cropped maize |
| title_sort | nitrogen diagnosis for double cropped maize |
| topic | Aplicación de Abonos Granos Clorofilas Maíz Nitrógeno Fertilizeer Application Grain Chlorophylls Maize Nitrogen |
| url | http://hdl.handle.net/20.500.12123/13376 https://www.sciencedirect.com/science/article/pii/S1161030122001484 https://doi.org/10.1016/j.eja.2022.126600 |
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