Double Diamond
Double Diamond tetraploid annual ryegrass is a cross between TAMTBO and Master annual ryegrass. Mature plant height and flag leaf width are incredible. In a private trial in Alabama, the trial managers mentioned that Double Diamond had the widest leaves of any annual ryegrass variety they had seen. Exhibiting high forage yields, very fast establish-ment, excellent leaf to stem ratio, and high forage quality, Double Diamond is an excellent choice for your forage needs.
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Annual ryegrass can be planted almost year around. As long as nighttime temperatures are above 40 degrees and daytime temperatures are above 55 degrees, adequate germination and growth can be accomplished. Fall ... South: September through March, depending on location. Fall ... North: August through October. Spring: As soon as the temperatures are adequate. Can be frost seeded. If overseeding warm-season pastures, mow or graze warm-season grasses short before planting annual ryegrass to aid in establishment.
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• Always take a soil test and consult your local extension service or fertilizer dealer for specific recommendations.
• Sowing: depending on the results of the soil test, a complete fertilizer such as 16-16-16 is helpful for establishment.
• Correct soil acidity, best between 5.5 and 7.
• A minimum of 30-40 units of nitrogen after each grazing or cutting will maximize forage production. -
• Graze lightly when grass reaches 6 inches.
• Never graze below 3 inches.
• Short intensive grazing is ideal.
• Avoid grazing when frozen.
• Rotate out of grazing for 14-21 days. -
• Never cut below 3 inches.
• Highest quality is at vegetative maturity.
• Optimum level of yield to quality ratio will usually maximize at boot stage.
Trials
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Starkville, MS
2020
lbs./acre Double Diamond 6,923 Trinova 6,580 Nelson 5,808 Big Boss 5,648 Prine 5,647 -
Louisiana (3 locations)
3 yr. ave. 2017-20
lbs./acre Double Diamond 8,019 Prine 7,908 Nelson 7,661 Earlyploid 7,477 Gulf 7,245 -
Overton, TX
3 yr. ave. 2017-20
lbs./acre Double Diamond 7,957 Jackson 7,537 Nelson 7,290 Gulf 6,853 Prine 6,293 -
Headland, AL
2020
lbs./acre Double Diamond 3,509 Attain 3,161 Nelson 3,116 Grits 2,988 Marshall 2,843
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