Planting Date and Nitrogen Rate Effects on Spring Malting Barley

Lauer, Joseph G.; Partridge, J. R.

doi:10.2134/agronj1990.00021962008200060011x

Cited by 34 publications

(43 citation statements)

References 12 publications

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“…1D) indicating a direct impact of N rate on malting barley quality. Previous studies have also shown that N fertilizer rate was a major factor aff ecting malting barley yield and quality and could result in decreased kernel plumpness and increased protein concentration (Lauer and Partridge, 1990;McKenzie et al, 2005;Th errien et al, 1994).…”

Section: Effect Of Nitrogen Ratementioning

confidence: 99%

Seeding Rate, Nitrogen Rate, and Cultivar Effects on Malting Barley Production

O’Donovan

Turkington

Edney³

et al. 2011

Agronomy Journal

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The malting barley (Hordeum vulgare L.) industry is often challenged by the availability of sufficient volume and quality to meet demand. Our objective was to evaluate the effects of agronomic practices on grain uniformity, protein concentration, yield, and yield components. Field experiments were conducted from 2005 to 2008 at eight rain‐fed locations in western Canada. The effects of two seeding rates (200 and 400 seeds m−2) and five N (0, 30, 60, 90, and 120 kg ha−1) rates on two two‐row barley cultivars (‘AC Metcalfe’ and ‘CDC Copeland’) were determined. Each experiment was conducted for 3 yr at each location (24 environments). CDC Copeland displayed some advantages over AC Metcalfe including higher grain yield, lower protein and more uniform kernels. For both cultivars, kernel weight, and plumpness were lower at the higher seeding rate; protein was also lower, maturity was earlier and kernels were more uniform. With increasing N rate, barley yield, kernel weight, and tillers plant−1 increased, but days to seed maturity and protein concentration also increased, and kernel plumpness and seed uniformity decreased. The increase in protein was less pronounced with CDC Copeland suggesting that there may be less risk with this cultivar of unacceptable protein levels at relatively high N rates. At many environments barley plant stand decreased while lodging increased with increasing N rates. To improve the likelihood that barley will be acceptable for malting growers should select low‐protein varieties, seed at relatively high rates and limit N application.

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Section: Effect Of Nitrogen Ratementioning

confidence: 99%

Seeding Rate, Nitrogen Rate, and Cultivar Effects on Malting Barley Production

O’Donovan

Turkington

Edney³

et al. 2011

Agronomy Journal

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“…Typically, the highest grain yields are achieved with the earliest feasible seeding date, with initially a gradual decline, then a much more rapid decline when seeding is delayed (Beard 1961;McFadden 1970;Ciha 1983;Lauer and Partridge 1990;Juskiw and Helm 2003). The impact of delayed seeding on grain yield varies among years and cultivars (Ciha 1983;Juskiw and Helm 2003).…”

mentioning

confidence: 99%

“…Yield losses may be as high as 50% when seeding is appreciably delayed due to increased disease (Nass et al 1975), shorter vegetative and grain-filling periods (Juskiw and Helm 2003), and higher vapour pressure deficits/lower water use efficiency (Tanner and Sinclair 1983). In addition to yield loss, malting quality is often lower in late-seeded crops due to a reduction in the proportion of kernels that are plump and, in many cases, increased grain protein (Beard 1961;Lauer and Partridge 1990;Weston et al 1993;Juskiw and Helm 2003).…”

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confidence: 99%

Fertilization, seeding date, and seeding rate for malting barley yield and quality in southern Alberta

McKenzie¹,

Middleton²,

Bremer³

2005

Can. J. Plant Sci.

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2005. Fertilization, seeding date, and seeding rate for malting barley yield and quality in southern Alberta. Can. J. Plant Sci. 85: 603-614. Weather conditions are often unfavourable for malting barley quality in southern Alberta, but agronomic practice may improve the probability of attaining acceptable quality. The objective of this study was to determine optimum agronomic practice (cultivar, fertilization, seeding date and seeding rate) for yield and quality of malting barley in southern Alberta. Field trials were conducted at 12 dryland sites and 2 irrigated sites over a 3-yr period (2001)(2002)(2003). At each site, five experiments were conducted with the following treatments: (1) N rate (0, 40, 80, 120, and 160 kg N ha -1 ), (2) P rate (0, 6.5, 13 and 19.5 kg P ha -1 ), (3) K rate (0, 25 and 50 kg K ha -1 ), (4) S rate (0, 10, and 20 kg S ha -1 ), and (5) seeding date (three dates at 10-d intervals) and seeding rate (150, 200, 250, 300, and 350 viable seeds m -2 ). Seven cultivars were included in the first experiment and two cultivars were included in the remainder of the experiments. Maximum grain yields were achieved when fertilizer + available soil N (estimated from unfertilized grain N yield) exceeded 31 kg N Mg -1 maximum grain yield, whereas protein concentrations were usually acceptable if fertilizer + available soil N was between 25 and 40 kg N Mg -1 maximum grain yield. Higher N rates generally reduced kernel size. Cultivar differences in N response were negligible. Application of P, K, or S did not affect malt yield or quality. Seeding delays of ≈20 d reduced grain yields by an average of 20%, with relatively greater yield declines under drought stressed conditions. Delayed seeding did not affect or slightly increased grain protein concentration. Kernel size was both increased and decreased by delayed seeding. Increased seeding rates from 150 to 350 viable seeds m -2 generally provided small yield gains, slight reductions in grain protein concentration and reduced kernel size. The most beneficial agronomic practices for malt barley production in southern Alberta were early seeding and application of N fertilizer at rates appropriate to the expected availability of moisture and soil N. . La première expérience portait sur sept cultivars auxquels deux autres se sont rajoutés par la suite. Le rendement atteint un maximum quand le N de l'amendement plus le N disponible dans le sol (estimé d'après le rendement grainier sans fertilisation) dépassent 31 kg de N par mg de rendement grainier maximal, alors qu'on obtient une concentration en protéines généralement acceptable quand la somme des deux sources de N se situe entre 25 et 40 kg de N par mg de rendement grainier maximal. Une concentration d'azote plus élevée réduit habituellement la taille du grain. Les cultivars réagis-sent tous à peu près de la même façon à l'azote. L'application d'amendements P, K ou S ne modifie ni le rendement ni la qualité du grain pour la brasserie. Un retard de ≈ 20 jours dans les semis réduit le rendement grainier d'en...

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“…1B). Previous studies have shown barley kernel plumpness usually decreased with increasing N rate but the results were sometimes inconsistent among locations and years (Zubriski et al 1970;Lauer and Partridge 1990;McKenzie et al 2005;O'Donovan et al 2011). Preceding crop had no effect on either germination energy or germination index while N rate had no effect on germination energy (Tables 1 and 2).…”

Section: Grain Quality Parametersmentioning

confidence: 95%