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Title

Delayed sowing improved barley yield in a no-till rainfed mediterranean agroecosystem

AuthorsPlaza-Bonilla, Daniel ; Álvaro-Fuentes, Jorge ; Bareche, Javier; Masgoret, Albert; Cantero-Martínez, Carlos
Keywordsdryland cropping systems
mediterranean
no-till
sowing date
winter cereals
Issue DateMay-2017
PublisherAmerican Society of Agronomy
CitationPlaza-Bonilla D, Álvaro-Fuentes J, Bareche J, Masgoret A, Cantero-Martínez C. Delayed sowing improved barley yield in a no-till rainfed Mediterranean 1 agroecosystem. Agronomy Journal 109 (4): 1249-1260 (2017)
AbstractThe effect of delaying sowing date and maturity class on no-till (NT) winter cereal performance was studied over two periods of 3 yr each. A 3 (sowing date) × 2 (maturity class) randomized complete block design was run for 3 yr with barley (Hordeum vulgare L.) (B-) (2006–2007 to 2008–2009) and soft wheat (Triticum sp.) (W-) (2009–2010 to 2011–2012) in northeastern Spain. Sowing dates corresponded to October (D1- the standard farming practice), November (D2), and December (D3). Maturity classes corresponded to early (-EC) and medium (-MC). Crop aboveground biomass, grain yield, and yield components were analyzed. The water use efficiency of aboveground biomass (WUEb) and grain yield (WUEy), and nitrogen use efficiency (NUE), were calculated. Averaging barley maturity classes and cropping seasons, D2 and D3 increased their grain yields 59 and 46%, respectively, when compared to D1. A greater number of grains per spike, as well as higher WUEb and NUE were observed in D2 and D3 compared to D1 in two of the three barley seasons. A greater thousand kernel weight (TKW) and higher WUEy were observed when sowing was delayed. Averaged across years, WEC presented a greater yield and aboveground biomass for D2 and D3 compared to D1, while for WMC there were no grain yield differences seen between the sowing dates, aboveground biomass or yield components. Our results demonstrate that, in western Mediterranean areas, sowing delay under NT can increase grain yield, WUE and NUE of winter barley, and also of wheat but only during wet years.
Description36 Pags.- 2 Tabls.- 4 Figs. The definitive version is available at: https://dl.sciencesocieties.org/publications/aj
Publisher version (URL)http://dx.doi.org/10.2134/agronj2016.09.0537
URIhttp://hdl.handle.net/10261/155622
DOI10.2134/agronj2016.09.0537
ISSN0002-1962
E-ISSN1435-0645
Appears in Collections:(EEAD) Artículos
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