Effect of defoliation frequency on simulated swards of ryegrass, tall fescue, and a 50/50 mixture of the 2 species

Bell, C. C.

doi:10.1080/00288233.1985.10430432

Cited by 6 publications

(2 citation statements)

References 22 publications

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“…There was a greater ingression of weed grasses in the TF-RG strip compared with either the RG-RG or the TF-TF strips (P<0.05), indicating a lack of competitive ability against ingression of weed grasses by TF when managed the same as RG. In agreement with Bell (1985), RG had a superior competitive ability against grass weeds compared with TF when under the same management (164 versus 302 g other grass/kg DM for RG-RG verses TF-RG, respectively).…”

Section: Botanical Compositionsupporting

confidence: 70%

Dry matter yield, nutritive value and tiller density of tall fescue and perennial ryegrass swards under grazing

Hendricks¹,

Donaghy²,

Matthew³

et al. 2016

Journal of NZ Grasslands

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Alternative pasture species with the potential to supply quality forage during summer feed shortages, such as tall fescue (TF), are of interest to dairy farmers. A paddockscale study was undertaken to compare performance of TF managed on a shorter rotation similar to perennial ryegrass (RG) (TF-RG) with TF managed on a longer rotation more consistent with its morphology of 4 live leaves/tiller (TF-TF), and with RG (RG-RG). Accumulated dry matter (DM) yields were similar for the three treatments. Patch grazing was observed during the first spring, with more long patches in TFTF than in either TF-RG or RG-RG. Sown-species leaf area index (LAI) was greater in TF-TF compared with TF-RG and RG-RG (2.25, 1.56 and 0.90, respectively; P

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Section: Botanical Compositionsupporting

confidence: 70%

Dry matter yield, nutritive value and tiller density of tall fescue and perennial ryegrass swards under grazing

Hendricks¹,

Donaghy²,

Matthew³

et al. 2016

Journal of NZ Grasslands

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“…By any criterion, herbage quality drops as ryegrass approaches heading and becomes stemmy. Thus digestibility declines with prolonged grazing intervals (Bell 1985), and late spring and summer management must maintain leafiness.…”

Section: ) Management Effects On Density and Persistencementioning

confidence: 99%

Fifty Years of Ryegrass Research in New Zealand

Hunt¹,

Easton²

1989

ProNZG

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Ryegrasses have dominated seed mixtures since the inception of pastoral farming in New Zealand largely because perennial ryegrasses are easily established, and persistent under a wide range of climatic and management conditions. Annual ryegrasses have vigorous seedling growth and can provide valuable high quality feed during the cool seasons. These virtues make ryegrass easily thk most important grass in New Zealand agriculture. This review traces the history of ryegrass use and development form the early days of bush burn mixtures to the present day array of bred cultivars Areas of research covered in the review include: (1) The selection and breeding of cultivars (2) Management effects on density and persistence (3) Physiology (responses to light, temperature and mineral nutrition) (4) Ryegrass diseases (5) Ryegrass pests (6) The ryegrass endophyte (7) Ryegrass herbage quality The concluding section examines the role ryegrasses are to play in diverse modern agricultural systems, and hence the goals for breeders.

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The effect of defoliation interval in winter on pasture productivity in winter and spring: a regional comparison

Belton¹

1990

Aust. J. Exp. Agric.

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Forty-five plots (3 by 2 m) of perennial ryegrass-white clover pasture were randomly allocated within 3 sites to 5 winter defoliation interval treatments to determine the effect of site on best defoliation interval as measured by winter and spring herbage accumulation. Defoliation intervals were 14, 28, 42, 56, and 84 days. The defoliation intervals resulting in maximum total winter dry matter (DM) accumulation at sites 1 and 3 were 42, 56 and 84 days. Available feed accumulated at the end of winter was highest for the 84-day defoliation interval at both sites (2.0 and 1.4 t DM/ha, respectively). At site 2, maximum total winter DM accumulation was achieved for defoliation intervals of 28, 42 and 56 days. Available feed accumulation at the end of winter was 1.2 t DM/ha for the 42-day interval and did not increase thereafter. The difference in response was associated with pasture composition. The results of the experiment showed that there is scope for flexibility in winter grazing management to suit livestock requirements without compromising total winter dry matter accumulation.

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Effect of defoliation frequency on simulated swards of ryegrass, tall fescue, and a 50/50 mixture of the 2 species

Cited by 6 publications

References 22 publications

Dry matter yield, nutritive value and tiller density of tall fescue and perennial ryegrass swards under grazing

Dry matter yield, nutritive value and tiller density of tall fescue and perennial ryegrass swards under grazing

Fifty Years of Ryegrass Research in New Zealand

The effect of defoliation interval in winter on pasture productivity in winter and spring: a regional comparison

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