Limitations to pasture production and choice of species

Self Cite

Two lotus and 4 clover cultivars were oversown at 3 tussock sites ranging in altitude from 460 to 1040 m. The sites were initially similar in soil chemical characteristics, aspect and topography, so that differences were attributable mainly to increasing severity of climate. The objectives were to determine the extent to which legume choice is affected by(a) lime to raise so11 pH, and(b) increasing seventy of climate. In the first year'Grasslands Pawera' red clover wards were outstanding at the lower sites. With time the superiority of Pawera was overtaken by 'Grasslands Maku' and Maitland lotus. Maku swards were outstanding in the absence of lime (UP to 5.5 t DM/ha at 460 m. and up to 2 t DM/ha at 760 m) in years 2-3-4, and Maitland lotus swards produced up to 5 t DM/ha with lime at the lowest site, but did not perform well without lime. At the highest site. lotus-based pasture did not perform consistently as well as the white clover wards. At all sites lime greatly mcreased both the legume content of the swards and total pasture production for at least 4 years. Generally Maitland lotus gave the greatest and Maku lotus the least responses to lime. Keywords: lotus, clover, Maku, Maltland. Huia, Tahora. Pawera. Tetra, lime, altitude, tussock grasslands, legumes

Section: Discussionmentioning

confidence: 99%

Effects of Lime and Altitude on the Performance of Pastures -Based on Six Alternative Legumes for Acid Tussock Grasslands

Floate¹,

Enright²,

Woodrow³

1989

Self Cite

“…Lunn (1951) also referred to "suppression, but not replacement,, of other species by tall oat grass on shady faces" in an article on Northbum and other Central Otago trials. Tall oat grass was discussed in Scott et al (1985); it was considered to have possibilities as a drought tolerant grass and for provision of standing winter herbage. particularly in the moderately fertile, low rainfall zone.…”

Section: Literature Reviewmentioning

confidence: 99%

Arrhenatherum elatius (L.) Beauv. - a review, and evaluation of tall oat grass for dryland and hawkweed-affected country in the South Island

Wills¹,

Begg²

1994

Self Cite

Tall oat grass has a long history in New Zealand agriculture. Reference was made to it in the 1880s as a useful grass and it was included in many trials such as those of Macpherson, Cockayne, Calder, Dunbar, Sievwright, Moore and others. While the survival and performance of tall oat grass was generally reported as being good, observations on palatability were mixed. The growth pattern was typically noted as being one of early spring growth, rapidly changing to reproductive form thereafter with a consequent decrease in acceptability to stock. In 1988, new accessions of tall oat grass originating from diverse countries were introduced to New Zealand from the US Department of Agriculture. This paper describes the physical characteristics of tall oat grass and field performance at Galloway Station, a site badly affected by hawkweed, and on other farms. This grass appears best suited to moderate-low rainfall areas (400-700 mm p.a.) which are not too exposed or too cold and it shows good potential for survival and spread in the drier soil conditions which result from hawkweed invasion in mid-altitude grassland areas. Two accessions, one from Chile and the other from Switzerland, have been identified which have superior winter performance, rust resistance and are less prone to bolting into a reproductive phase in the spring. These, along with a preliminary selection containing a wider genetic base, are being commercially evaluated at present. Keywords: Arrhenatherum elatius, tall oat grass, hawkweeds, plant selection, vegetation

“…the legumes lotus, birdsfoot trefoil, alsike clover (Trifofium hybridwn), and lupin (Lupinus) species, and herbs such as sheep's burnet. Scott et al (1985) gave a detailed account of species in these situations. For pasture renewal of improved flatland pastures.…”

Section: Species For South Island High Countrymentioning

confidence: 99%

The range of pasture species in New Zealand and their use in different environments

Charltgn¹,

Belgrave²

1992

The 29 different species of pasture plants, now commercially available to farmers in New Zealand, may make the choice of pasture seeds and seeds mixtures much more complicated, but their particular features can add significant value to farming. The suitability of these species is presented for the main categories of New Zealand's pastoral land: summer-moist lowland, cast coast dryland, hill country, and the South Island's high country. Important features of each species are summa&d. Invested returns from animal production on modem pastures can be more than 200%. However, farmers are advised to seek specialist advice before they invest Keywords species, environment, suitability, compatibility