• Best summer annual option when dry hay production is planned
  • Strong emergence & quick regrowth
  • Rapid growth & regrowth (faster than sorghum x sudangrass)
  • Lower prussic acid risk than sorghum
  • Tolerates poor fertility and low pH

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Summer Select

1 = Poor; 5 = Excellent

Recovery After Cutting: 3
Leaf Disease Resistance: 3
Sugarcane Aphid Tolerance: 1
Single Silage Cut Suitability: 2
Rapid Dry Down: 4


  • Grazing – Recommended beginning height is 18-24 in. with a stop height of 6-8 in. (or at least 2 nodes remaining)
  • Hay/Baleage – more suitable than sorghum x sudangrass for dry hay – optimal timing is 40 days or 40 in.
  • Dense stands offer multiple cover crop advantages – from weed suppression to nematode control
  • Emergency hay or pasture option

Planting Time:
Emergence (days): 10

Seeding Information:
Seeds/lb.: 35-40,000
Soil Temperature: 60 F
Depth (in.): 3/4 – 1 1/2
Maturity: Early Med
Dryland Seeding (lbs./acre): 15-25
Irrigation/Hi-Rain Seeding (lbs./acre): 20-35

  • Can be no-tilled into the stubble of winter and spring crops


  • Under favorable conditions, 1-1.25 lbs. of nitrogen/day of planned growth should be available for ultimate growth, with little risk for nitrate poisoning. For example, for a planned 40 day harvest, 40-45 lbs. of N should be available.
  • Fertility requirements are similar to those of corn silage

Harvest & Management Tips:

  • Dry hay and/or baleage are applicable where and when proper harvest management is followed. Dry hay is suited for areas with less moisture and humidity; baleage offers more flexibility in all other areas.
  • Harvest at proper moisture (yield and quality are maximized between 60-72%)
  • Wide windows are required for baleage products to ensure rapid dry down
  • For silage, keep chop length uniform (around 1/2 in.)

Avoiding Nitrate & Prussic Acid Poisoning:

  • Do not harvest drought stricken plants within four days following a heavy rain
  • Do not apply N prior to expected drought periods
  • If in doubt, cut at higher stubble height as nitrates tend to accumulate in the lower stalk
  • If high prussic acid is found, wait one month prior to feeding. Unlike excessive nitrates, prussic acid will escape from the plant over time.
  • When questions about livestock safety remain, get forage tested promptly

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