Amass Tetraploid Italian Ryegrass

Late heading, big producer into winter and spring

Lolium multiflorum

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Persistent under heavy grazing pressure with quality feed in spring and early summer. Recovers well from heavy grazing and holds its quality for a lot longer. Ideal for areas where periodic winter waterlogging occurs. Good variety for silage and hay if planted in early autumn.

Key attributes

  • Bred for fast establishment and higher winter yields
  • Late heading holds quality later into the season
  • Persistent under heavy grazing and recovers well
  • Tolerates periodic winter waterlogging
  • Strong rust resistance
  • Great for silage and hay if planted in early autumn

About this variety

Amass is a tetraploid Italian ryegrass that has been bred for fast seedling establishment and higher winter yields when feed is most needed. The later heading date allows it to hold quality later into the season. It can tolerate temporary waterlogging and recovers well from heavy grazing.

Amass exhibits good heat tolerance in the warmer months and under favourable conditions it will persist into the second year. Suitable for all livestock types, as well as hay and silage production.

Amass is ideal for undersowing in dairy pastures to boost production at low cost, and can be used by farmers in WA who have irrigation or are in areas with summer rainfall events, or districts that can get late spring rain. It can be over sown into older pastures in the autumn, to provide a boost to winter and spring production, with benefits extended into the following summer, or as new pasture sown with the appropriate clovers.

Amass can be used as a transition crop following summer forage in lieu of perennial grasses where farmers are looking to do remedial work to paddocks prior to sowing a full irrigation pasture. It will produce high quality grazing and silage and where managed appropriately can provide excellent high-quality pasture for up to two years.

Planting & grazing notes

Sow in autumn or spring if conditions are suitable. Good variety for silage and hay if planted in early autumn. It can be over sown into older pastures in the autumn to provide a boost to winter and spring production, or sown as new pasture with the appropriate clovers. Recovers well from heavy grazing and holds its quality for a lot longer, as it won't go to head when planted in spring.

Disease & pest resistance

Excellent rust resistance produces high quality grazing feed in the warmer months for increased utilisation by stock.

Stand life

Under favourable conditions Amass will persist into the second year, and where managed appropriately can provide excellent high-quality pasture for up to two years. In its second year it will flower late in the season (up to early December), matching more vegetative growth to available soil moisture.

How it's sold

FormPackStatus
Bare25 kgIn stock
Amass Tetraploid Italian Ryegrass

FAQs

What can I undersow into my dairy pasture to boost winter feed?

We recommend Amass Tetraploid Italian Ryegrass, which is ideal for undersowing into dairy pastures. It was bred for fast seedling establishment and higher winter yields, and its later heading holds feed quality later into the season. It suits 600mm+ rainfall or irrigation and may persist into a second year.

Can I sow ryegrass in spring under a pivot for summer feed?

Yes, Amass Tetraploid Italian Ryegrass can be sown in spring where conditions suit, and it won't head in its first season when spring sown, so it holds quality for longer. It has good heat tolerance and thrives under irrigation. Sow it with clovers and graze rotationally to keep it leafy.

How much ryegrass seed per hectare for an irrigated dairy paddock?

For Amass Tetraploid Italian Ryegrass under irrigation, we recommend 25-35 kg/ha plus clovers. In high-rainfall dryland paddocks, drop to 20-25 kg/ha plus clovers. Sow shallow into a firm, moist seedbed and apply fertiliser at sowing based on a soil test. Use the higher rates where you want a dense stand for silage.

Which ryegrass copes with heavy grazing pressure from dairy cows?

Amass Tetraploid Italian Ryegrass is persistent under heavy grazing pressure and recovers well, holding its quality longer than many ryegrasses. It gives quality feed through spring and early summer. Rotational grazing still gets the best from it, letting plants rebuild leaf between grazings.

What ryegrass will survive periodic winter waterlogging in high-rainfall country?

Amass Tetraploid Italian Ryegrass is ideal for areas where periodic winter waterlogging occurs, and it tolerates mildly acidic soils. It suits sandy to heavy soils with a pH of 5 or above, in 600mm+ rainfall districts or under irrigation. Combine it with a waterlogging-tolerant clover for a more productive wet-paddock pasture.

I want to make silage from a ryegrass that can carry into a second year, what should I use?

Amass Tetraploid Italian Ryegrass is a good choice for silage and hay when planted in early autumn, and it may persist into a second year under favourable conditions. In the second year it flowers late, up to early December, which extends the window for quality feed. Fertilise after each cut to support regrowth.

Is there a ryegrass that handles heat at the start and end of the season?

Amass Tetraploid Italian Ryegrass has good heat tolerance, which helps with warm conditions at sowing and toward the end of the season. That suits irrigated or summer-rainfall paddocks where it can keep producing into early summer. It is also persistent under heavy grazing and holds its quality well.

What should I sow with a tetraploid Italian ryegrass on a dairy?

We recommend sowing Amass Tetraploid Italian Ryegrass with clovers, such as Haifa White Clover or Red Clover under irrigation, or a suitable sub clover in high-rainfall dryland. Clovers fix nitrogen and lift protein for milking cows and other stock. Adjust the ryegrass rate so the clover has room to establish.

Does Amass ryegrass really last two years?

Amass Tetraploid Italian Ryegrass may persist into a second year where conditions are favourable, such as under irrigation or in higher-rainfall areas with summer or late-spring moisture. In drier paddocks it is more likely to behave as an annual. Oversowing into older pastures in autumn is a common way to use it.

Amass vs Hypa ryegrass, which suits a longer-term pasture?

Hypa Hybrid Ryegrass is the better choice for a longer-term pasture. It is a tetraploid hybrid bred from 75% perennial and 25% Italian genetics, more persistent than other hybrids in drier conditions, and rated for 650mm+ rainfall. Amass Tetraploid Italian Ryegrass may last up to two years and suits 600mm+ rainfall or irrigation, so choose it for short-term high output.