The Programmed Approach™ to pasture renewal and cropping

Lane, PA; Addison, P. J.; Plateringen, M. J. van

doi:10.33584/jnzg.2009.71.2777

Cited by 5 publications

(3 citation statements)

References 8 publications

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“…All paddocks identified for reseeding were treated with glyphosate (Roundup; Monsanto Meath, Ireland) to ensure that all existing botanical species were removed, reducing the regrowth of weed grass species (Lane et al 2009). Seed bed cultivations commenced 7-10 days after glyphosate application.…”

Section: Variety Establishmentmentioning

confidence: 99%

Establishing phenotypic performance of grass varieties on Irish grassland farms

et al. 2017

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SUMMARYConventionally perennial ryegrass evaluations are conducted under simulated grazing studies to identify varieties with the best phenotypic performance. However, cut-plot environments differ greatly to those experienced on commercial farms as varieties are not exposed to the same stress levels in test environments. It could be argued that plot-based testing regimes provide little direction to plant breeders in the development of advanced varieties. Varietal phenotypic performance needs to be quantified in ‘commercial’ situations. The objective of the current study was to evaluate the phenotypic performance of a range of perennial ryegrass varieties under commercial farm conditions. Monocultures of 11 Irish Recommended List perennial ryegrass varieties were sown on 66 commercial farms throughout Ireland where performance was evaluated over a 3-year period from 2013 to 2015, inclusive. A linear mixed model was used to quantify variety effects on grassland phenotypic performance characteristics. No significant variety effect was estimated for total, seasonal or silage herbage production. Despite the lack of variety effects, pairwise comparisons found significant performance differences between individual varieties. Grazed herbage yield is of primary importance and was shown to be correlated strongly with total production (0.71); Grazed herbage yield differed significantly by variety, with a range of 1927 kg dry matter (DM)/ha between the highest and lowest performing varieties. Sward quality (dry matter digestibility [DMD]) and density were influenced by variety with a range of 44 g/kg DM for DMD and 0.7 ground score units between the highest and lowest performing varieties. Results of the current study show that on-farm evaluation is effective in identifying the most suitable varieties for intensive grazing regimes, and the phenotypic variance identified among varieties performance for many traits should allow for improved genetic gain in areas such as DM production, persistence and grazing efficiency.

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Section: Variety Establishmentmentioning

confidence: 99%

Establishing phenotypic performance of grass varieties on Irish grassland farms

et al. 2017

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“…The Waikato MV farm undertakes the Programmed Approach TM to regrassing as described by Lane et al (2009). This means that the interval between regrassing events is eight years between commencing the regrassing program and the need to re-grass again.…”

Section: Methodsmentioning

confidence: 99%

Determining the value of pasture renewal to a dairy farm system in the 2009-2010 Season

McLean¹

2011

ProNZG

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Information was gathered from dairy farms in four regions of New Zealand for the season ending May 2010. The regions were Waikato, Taranaki, Canterbury and Southland. Two farms were selected from each region, one that had undertaken regrassing on a regular basis for at least five years (Modern Varieties, MV) and the other had not undertaken any regrassing in the previous decade (Traditional Varieties, TV). A computer simulation tool (UDDER) was used to model the effect of regrassing on these farms. In three regions, MV generated more milksolids/ha and a greater net farm margin compared with TV. The use of computer modelling allows farmers to make a decision based on the data from their own property rather than rely on data that is sourced from different growing conditions. Keywords: regrassing, modern varieties, traditional varieties

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“…An establishment practice (Programmed Approach™) suggested by Lane et al (2009) incorporates cropping to break the weed/pest cycle to give the new plants an increased chance of survival. the programme involves planning well ahead of the event, such that additional fertiliser, liming, spraying with glyphosate etc.…”

Section: Weed and Pest Invasionmentioning

confidence: 99%

Dairy farm systems to aid persistence

Macdonald¹,

Matthew²,

Glassey³

et al. 2011

NZGA R&P Series

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This manuscript reviews fundamental pasture management principles relevant to pasture persistence. We first note some points of context, within which the debate on pasture persistence is occurring: the release of new pasture cultivars, the debate about climate change, and the effects of newly introduced weeds and pests. We then examine trends in farm practice. The critical management period (of most concern to farmers) has shifted from winter/autumn to summer. It is essential that farmers have and use sets of decision rules to govern when and how hard to graze, when to supplement and when to remove cows from pasture to allow pastures to be grazed appropriately to aid pasture persistence. Adaptations available to improve pasture persistence include: the use of nitrogen fertiliser to increase feed supply going into the summer, the use of crops or other feed supplements, stocking rate and on-off grazing to ensure the pastures are appropriately grazed in the summer. New pastures must be treated with care in their first year of life to ensure survival. The response of farmers to these variables to aid persistence of pastures is discussed. Keywords: climate, insect pests, pasture growth model, pasture renewal, weeds

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The Programmed Approach™ to pasture renewal and cropping

Cited by 5 publications

References 8 publications

Establishing phenotypic performance of grass varieties on Irish grassland farms

Establishing phenotypic performance of grass varieties on Irish grassland farms

Determining the value of pasture renewal to a dairy farm system in the 2009-2010 Season

Dairy farm systems to aid persistence

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