Dry matter yield and radiation use efficiency of four autumn sown top flowering annual clovers

Nori, Hollena; Moot, Derrick J.; Black, Alistair

doi:10.33584/jnzg.2015.77.470

Cited by 6 publications

(6 citation statements)

References 16 publications

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“…Annual (and Italian) ryegrasses are well recognised for their greater winter/early spring production compared to their perennial counterparts. Yet, despite previous research indicating their potential (Taylor et al 1979;Macfarlane et al 2015;Nori et al 2015), farmer recognition and adoption of annual clovers for similar purposes is considerably more limited.…”

Section: The Diversified Forages Projectmentioning

confidence: 97%

Diversified pastures at the front line of climate change in Northland: farmers experiences, new directions and wider implications for other parts of the country

McCahon

McCahon²,

Ussher³

2021

NZGA R&P Series

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The persistence of both perennial ryegrass and white clover is challenged under summer-dry conditions. Future climate change projections indicate greater incidence and severity of summer moisture stress for many regions in New Zealand, and therefore, greater pressure on our traditional pasture base. The ‘Northland Diversified Forages Project’ aimed to identify alternative pasture species that provide an advantage in terms of dry matter yield, quality and/or timing of growth within a summer-dry environment, with a particular focus on legumes. A series of mown-plot trial and paddock demonstrations were established across a range of soil types to assess the potential of a wide variety of forage species. Perennial ryegrass and white clover both failed to persist, comprising less than 25% of the sward within 3 years of establishment. Cocksfoot demonstrated potential as a more persistent alternative to perennial ryegrass. However, whilst a range of legumes were successful at increasing the proportion of legume in the sward and total yield in the first year, significant challenges were identified in maintaining functional legumes across multiple years. This raises questions around whether we currently have the right species in New Zealand to adapt to a changing climate.

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Section: The Diversified Forages Projectmentioning

confidence: 97%

Diversified pastures at the front line of climate change in Northland: farmers experiences, new directions and wider implications for other parts of the country

McCahon

McCahon²,

Ussher³

2021

NZGA R&P Series

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“…annual legume (Nori et al 2015a) so seed set often may not occur in low rainfall areas with low water holding capacity.…”

Section: Arrowleaf Clover (Trifolium Vesiculosum)mentioning

confidence: 99%

Availability of seed for hill country adapted forage legumes

Monk¹,

Moot²,

Belgrave³

et al. 2016

NZGA R&P Series

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New Zealand hill and high country are marginal environments for perennial ryegrass and white clover. Other pasture species, particularly legumes, provide more productive and persistent options for the range of soil climate and topography found in these environments. On cultivatable hill country, lucerne (alfalfa) has been successfully introduced to dryland areas with imported seed increasing five-fold to 210 t per annum over the last decade. This has led to the first release of a New Zealand selected cultivar in 20 years. For subterranean clover reliance on hardseeded Australian cultivars that frequently fail to meet New Zealand biosecurity standards means seed supply is inconsistent. The potential exists to create a niche seed market through selection of locally adapted material grown for seed in New Zealand. Lotus pedunculatus is available commercially but seed often fails to meet certification standards and is predominantly used in forestry. Lotus corniculatus requires agronomic research to overcome some management constraints and the re-establishment of seed supply before it would be a viable option for drier hill country. Seed production for perennial lupins in New Zealand is predominantly for an export ornamental market, with some direct relationships with growers allowing onfarm use. Caucasian clover seed production has ceased in New Zealand and the demand for seed particularly from high country farmers is no longer met. The smallseeded annual balansa clover is being integrated into farm systems and its prolific seeding has enabled some on-farm production of seed for personal use. For it and arrowleaf and Persian clovers, imported cultivars are available and a local market is unlikely to thrive until agronomic and hard seed issues are addressed. Seed supply of forage legumes to satisfy demand for hill country is problematic and will require development of different models including grower co-ops, regional seed retailers, and on-farm production for niche markets. Keywords: alfalfa, Lolium perenne, Lupinus polyphyllus, Medicago sativa, perennial ryegrass, Sitona lepidus, Trifolium ambiguum, Trifolium michelianum, Trifolium repens, Trifolium resupinatum, Trifolium subterraneum, Trifolium tumens, Trifolium vesiculosum, white clover

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“…2021). Balansa clover has shown high total dry matter yields and early spring growth due to a high radiation use efficiency compared with other winter annuals (Nori et al . 2015 a ).…”

Section: Introductionmentioning

confidence: 99%

A review of legume research and extension in New Zealand (1990–2022)

Moot

2022

Crop & Pasture Science

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Legumes have underpinned transformational change on New Zealand sheep and beef farms over the last 30 years. This was through an emphasis on ewe nutrition based on lucerne or red clover dominant pastures, and increased use of subterranean and white clovers on uncultivatable hill country. Pre- and post-weaning lamb growth rates have increased, and enabled earlier slaughter of heavier lambs. The farm systems results include greater numbers of hoggets mated, higher lambing percentages and greater ewe efficiency (kg lamb weaned/kg ewe mated). Extension packages to support legume use have compared growth rates of resident and legume-based pastures, economic analyses of successful farms and management packages for the most appropriate legume in different environments. Over the same period, the dairy industry rapidly expanded in cow numbers and area onto flat irrigated land on the Canterbury Plains. The nitrogen deficiency of perennial ryegrass was overcome by a linear increase in nitrogen fertiliser use. Environmental concerns from this intensification has led to a legislated nitrogen cap of 190 kg/ha.year. This, coupled with a recent trebling in urea price, has returned attention to increasing the white clover content of these pastures. Nitrogen applications can be minimised by using diverse pastures sown with a legume, herb and <8 kg/ha of perennial ryegrass. Work on other legumes, including annuals and those with condensed tannins, has to date failed to increase their use in most pastoral settings, with the exception of the perennial lupin which is adapted to high-aluminium soils in the South Island High Country.

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Dry matter yield and radiation use efficiency of four autumn sown top flowering annual clovers

Cited by 6 publications

References 16 publications

Diversified pastures at the front line of climate change in Northland: farmers experiences, new directions and wider implications for other parts of the country

Diversified pastures at the front line of climate change in Northland: farmers experiences, new directions and wider implications for other parts of the country

Availability of seed for hill country adapted forage legumes

A review of legume research and extension in New Zealand (1990–2022)

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