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Dry sowing reduced durum wheat performance under irrigated conservation agriculture

Creator: Grahmann, K.
Creator: Honsdorf, N.
Creator: Crossa, J.
Creator: Alvarado Beltrán, G.
Creator: Govaerts, B.
Creator: Verhulst, N.
Year: 2021
URI: https://hdl.handle.net/10883/21697
Language: English
Publisher: Elsevier
Copyright: CIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose
Type: Article
Place of Publication: Amsterdam (Netherlands)
Volume: 274
DOI: 10.1016/j.fcr.2021.108310
Keywords: Permanent Beds
Keywords: Plant Stand
Keywords: Wet Sowing
Keywords: Partial Least Square Regression
Description: Permanent raised beds (PB) are a conservation agriculture option for irrigated conditions that can improve soil quality, increase soil moisture conservation and stabilize yields compared to conventional furrow irrigation. In irrigated wheat (Triticum sp.) production, wet sowing (i.e. applying irrigation before sowing) is most widely used. It allows pre-sowing weed control but reduces sowing time flexibility. Dry sowing, i.e. applying irrigation after sowing, reduces options for weed control but improves water use efficiency and sowing time flexibility. This study evaluated the performance of durum wheat (Triticum durum L.) under conventionally tilled (CTB) and PB with wet and dry sowing in northwestern Mexico. In those four tillage-sowing irrigation environments (ENV), five nitrogen (N) fertilization treatments were tested. Plant stand, grain yield, and grain quality were measured for ten years and fertilizer-based N use efficiency indices were assessed in three years. Plant stand, wheat yield and quality were significantly affected by ENV. The lowest plant stand and yield were found in PB-Dry sowing. On average, only 54 plants m-2 emerged in PB-Dry whereas 159 plants m-2 emerged in CTB-Wet. Plant stand showed high yearly fluctuations, with plant stand in dry sowing favored by lower reference evapotranspiration, with CTB-Dry favored more by high minimum temperature and PB-Dry by high maximum temperature. Yield ranged between 4.20 and 7.94 t ha-1. Yield in PB-Dry was on average 0.35 to 0.50 t ha-1 lower than in the remaining ENV, but positive interactions between year and dry sowing systems were associated with high minimum temperatures at germination and tillering. N fertilization management affected wheat quality, but not wheat yield, possibly due to high levels of soil mineral N available at sowing that were not measured in this study. Split application of N increased grain N content compared to basal N application. Research should address reduced plant stands with dry sowing in conservation agriculture to find management options that improve wheat emergence. Further efforts to optimize N fertilizer management in PB are required to improve grain quality components.
Agrovoc: NITROGEN
Agrovoc: USE EFFICIENCY
Agrovoc: WET SEEDING
Agrovoc: WHEAT
Related Datasets: https://hdl.handle.net/11529/10548582
Related Datasets: https://www.sciencedirect.com/science/article/pii/S0378429021002562?via%3Dihub#sec0100
ISSN: 0378-4290
Journal: Field Crops Research
Article number: 108310


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  • Wheat
    Wheat - breeding, phytopathology, physiology, quality, biotech

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