Annual Ryegrass: Winterhawk

CSGR090
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Grasses

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Extending the grazing season while protecting and building the soil is a great benefit of this species. The biomass N…

Extending the grazing season while protecting and building the soil is a great benefit of this species. The biomass N content can range from 1.3-2.4% and varies depending on the amount of residual N left from the previous crop. Reports of annual ryegrass having the potential to scavenge up to 200 lbs of residual N/A/yr have been recorded. Ryegrass can be very successfully broadcast into established row crops. Winter killed ryegrass can still provide weed suppression, soil protection and trap residual N until spring. Ryegrass attracts very few pest insects that could pester the next crop. With lower needed seeding rates per acre means you will spend less of freight an your applicator can remain in the drill or in the air longer. I like the deep roots of annual ryegrass but when considering it for more northern area, it must be established prior to hard freezing in order to have the best chance of winter survival. keith@greencoverseed.com

Basic Info

Maturity (Days)
N/A
Seeds/lb
190000
C/N at Maturity
High
Growth Habit
Upright
Root Type/Depth
Deep Fibrous
Cold Kill (F)
0
Dry Matter Potential(Tons/acre)
3 - 5

Use and Characteristics

N Fix Potential
Lasting Residue
Very Good
Palatibility
Excellent
Hay Harvest
Very Good
Regrowth
Excellent
Deep Compaction
Very Good
Surface Compaction
Excellent
Weed Suppression
Excellent
Crimp Kill
Difficult

Planting

Plant Depth
1/4 - 1/2"
Min Germ Temp(F)
40
Drilled Seed Rate (lbs/acre)
15-20
Broadcast Seed Rate (lb/acre_)
20-30

Tolerance

Heat
Fair
Drought
Fair
Shade
Very Good
Wet Soil
Excellent
Low Fertility
Poor
Low pH Soil
Very Good
High pH Salinty
Fair
High pH Calcareous
Fair