Effects of Nitrogen Application on Yield and Quality of Bromegrass Hay in Central Alberta

Malhi, S. S.; McBEATH, D. K.; Baron, V. S.

doi:10.4141/cjps86-081

Cited by 33 publications

(15 citation statements)

References 4 publications

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“…Similar to our results, total N in crested wheatgrass, intermediate wheatgrass, bromegrass and Russian wild ryegrass was observed to increase with level of N fertilization (Smith and Lutwick 1975). Average PC, across three Black Chernozemic and a Gray Luvisolic soils, in bromegrass increased from 112 g kg -1 at zero-N check to 144 g kg -1 at the 150 g N kg -1 rate (Malhi et al 1986), and the PC at these N rates in bromegrass was somewhat greater than the PC in both Cut 1 and Cut 2 of quackgrass in the present study. But, unlike DMY, the PC for Cut 2 increased with N rate in 1998 only, and the PCs for Cut 1 and Cut 2 were not consistently different.…”

Section: Experiments 2 Fertilizer N Effects On Forage Yield and Qualitysupporting

confidence: 78%

“…At the corresponding N rates the DMY increased by 77, 107 and 105%; and the PC increased by only 8, 28 and 45%. Malhi et al (1986) and Penney et al (1990) also observed relatively higher response to N fertilizer for the PY compared to the DMY of smooth bromegrass. This was because of the cumulative effect of increase in DMY and PC, which resulted in relatively greater increase in PY in response to N fertilization.…”

Section: Experiments 2 Fertilizer N Effects On Forage Yield and Qualitymentioning

confidence: 94%

“…Estimated total DMY was maximized at 240, 146 and 149 kg N ha -1 in 1998, 1999 and 2000, respectively. Similarly, DMY of bromegrass on a silt clay loam Gray Luvisol was maximized at 100 to 150 kg N ha -1 (Malhi et al 1986). The maximum DMY for Cut 1 was estimated at 178, 123 and 133 kg N ha -1 in the corresponding 3 yr.…”

Section: Experiments 2 Fertilizer N Effects On Forage Yield and Qualitymentioning

confidence: 99%

“…In a previous study, the PY of smooth bromegrass on a silt clay loam Gray Luvisol was maximized at 100 to 150 kg N ha -1 (Malhi et al 1986). The proportional increase in PY from N fertilization was relatively greater than DMY and PC.…”

Section: Experiments 2 Fertilizer N Effects On Forage Yield and Qualitymentioning

confidence: 99%

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Harvest time and N fertilization effects on forage yield and quality of quackgrass (Elytrigia repens L.) in northeastern Saskatchewan

Malhi¹,

Foster²,

Gill³

2003

Can. J. Plant Sci.

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Beauv.] is a primary noxious weed, but some cattle producers are discovering its value as forage for early-season grazing and for winter feeding as hay. Little information is available on how its production and quality change with advancing maturity and on its response to improved management in the Parkland zone of the Canadian prairies. The objective of this study was to determine the effects of harvest date and N fertilizer (surface-broadcast ammonium nitrate at 0, 56, 112 and 168 kg N ha -1 ) on the forage yield and quality of quackgrass. The study was done on a 10-yr-old quackgrass (≈ 90%) dominated stand on a silty clay loam (Dark Gray Luvisol) soil near Tisdale in northeastern Saskatchewan. For the harvest dates between early June and early September, maximum dry matter yield (DMY) was in August and maximum protein yield (PY) occurred in July. A delay in harvest reduced protein concentration (PC) and total digestible nutrients concentration (TDN), while it increased acid detergent fiber concentration (ADF). The DMY, PC and PY increased with increasing N rate for both Cut 1 (in early July) and Cut 2 (in late September). Strong quadratic relationships were observed between DMY and N rate. The effect of N application was relatively greater on PY than DMY due to the cumulative effect of increases in DMY and PC, and was greater in Cut 1 than in Cut 2. With the increase in N rate, TDN showed a trend of small increase, while ADF tended to decrease. In summary, the results show that N fertilization increases both forage yield and quality of quackgrass. Harvesting in late July or August is likely to provide maximum DMY when one harvest per season is taken. On sait néanmoins peu de choses sur la façon dont la production et la qualité du fourrage évoluent avec sa maturation et sur la réaction de cette espèce aux meilleures pratiques de culture dans la zone des prairies-parcs des Prairies canadiennes. L'étude devait préciser l'incidence du moment de la récolte et des engrais N (0, 56, 112 ou 168 kg de nitrate d'ammonium par hectare épandus à la volée) sur la qualité et le rendement fourragers du chiendent. Elle portait sur un peuplement de dix ans dominé par le chiendent (≈ 90 %) poussant en loam de limon argileux (luvisol gris foncé) près de Tisdale, dans le nord-est de la Saskatchewan. Lorsque la récolte s'effectue entre le début de juin et le début de septembre, le rendement maximum en matière sèche (RMS) survient en août et le rendement maximal en protéines (RP) en juillet. Un retard dans la récolte réduit la concentration de protéines (CP) et d'éléments nutritifs digestibles (END), mais accroît la concentration de fibres au détergent acide (FDA). Le RMS, la CP et le RP augmentent avec le taux d'application de N à la première coupe (début juillet) et à la seconde (fin septembre). Il existe de fortes relations quadratiques entre le RMS et le taux d'application de l'engrais azoté. Ce dernier agit relativement plus sur le RP que sur le RMS en raison de l'effet cumulatif du RMS et de la CP, et cela davantage à la prem...

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Section: Experiments 2 Fertilizer N Effects On Forage Yield and Qualitysupporting

confidence: 78%

Section: Experiments 2 Fertilizer N Effects On Forage Yield and Qualitymentioning

confidence: 94%

Section: Experiments 2 Fertilizer N Effects On Forage Yield and Qualitymentioning

confidence: 99%

Section: Experiments 2 Fertilizer N Effects On Forage Yield and Qualitymentioning

confidence: 99%

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Harvest time and N fertilization effects on forage yield and quality of quackgrass (Elytrigia repens L.) in northeastern Saskatchewan

Malhi¹,

Foster²,

Gill³

2003

Can. J. Plant Sci.

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“…a-< Different letters denote signihcant differences (P < 0.05) between species using tukey's multiple comparison test. (Table l) (Malhi et al 1986(Malhi et al ,1993Penney et al 1990) and on Graywooded soils in Saskatchewan (Ukrainetz et al 1988) A harvest management x N-rate interaction occurred on the sandy loam soil in 1993 (Fig. 2) A species x harvest management x N-rate interaction occurred on the clay loam soil in 1992 and on the sandy loam soil in 1993 (Fig.…”

Section: Ns Ns Nsmentioning

confidence: 99%

Harvest management and N-fertilization effects on yield and regrowth of smooth bromegrass, crested wheatgrass, and meadow bromegrass in the eastern prairies

McCaughey¹,

Simons²

1996

Can. J. Plant Sci.

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McCaughey, W. p. and Simons R. G. 1996. Harvest management and N fertilization effects on yield and regrowth ofsmooth Uromeirais, crested wheatgrass, and meadow bromegrais in the eastern prairies. Can (Bailey 1976;Simons and Gross 1985). Economic analysis has shown that optimum rates of application vary considerably depending on economic and environmental conditions (McCaughey et al. 1990). Also, economic optimum nitrogen application rates have frequently been found to be higher than the recornmended rates (Manitoba Agriculture 1988).

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Long-term effects of ammonium nitrate application on soil pH, and micronutrients in soil and bromegrass hay

Malhi¹,

Nyborg

Harapiak³

et al. 1995

Plant-Soil Interactions at Low pH: Principles and Management

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Effects of Nitrogen Application on Yield and Quality of Bromegrass Hay in Central Alberta

Cited by 33 publications

References 4 publications

Harvest time and N fertilization effects on forage yield and quality of quackgrass (Elytrigia repens L.) in northeastern Saskatchewan

Harvest time and N fertilization effects on forage yield and quality of quackgrass (Elytrigia repens L.) in northeastern Saskatchewan

Harvest management and N-fertilization effects on yield and regrowth of smooth bromegrass, crested wheatgrass, and meadow bromegrass in the eastern prairies

Long-term effects of ammonium nitrate application on soil pH, and micronutrients in soil and bromegrass hay

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