Soil First SF 125 N-Hancer cover crop mix is a heavy legume seed mix intended for adding Nitrogen and biomass without intensive spring management.

  • Designed as a nitrogen booster in front of grass cash crops; decreased spring management needed
  • Oats work as a carrier, but also keep nitrogen from leaching or leaving the system
  • Nitrogen production will be widely varied, based on planting date, climate, spring termination date, etc.
  • Heavy legume seed mix will work in grazing environments, supplying high protein and digestibility

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Soil First

Non-Forage Benefits:
1 = Poor; 5 = Excellent

Compaction Alleviation: 4
Weed Suppression: 4
Biomass Production: 4
Erosion Control: 5
Disease/Pest Control: 2
Pollinator/Beneficials: 3
P & K Cycling: 4
Ease of Establishment: 4

Nitrogen Fixer/Scavenger: Fixer

Nutritional Value:
Values Vary Greatly Depending on Maturity

Crude Protein: 14-18
DM Tons/Acre: 2-5
Days to First Harvest: 45-50
Days to Next Harvest: –

Ranking (Good, Better, Best):
Graze: Best
Baleage: Good
Chop: Better

Planting Time: July-Sept.

Seeding Rate:
Mono (lbs./acre): 35-40
Forage (lbs./acre): 40-50

Seeding Info:
Seeding Depth (in./with drill): 1/4.-1 in.
Germination Soil Temp.: 45 F
Bulk Density (lbs./ft.³): 44
Aerial Application Rate: Not Rated


Early planting is the goal with SF 125. More biomass equals greater nitrogen contribution. Because of peas’ larger seed size, broadcast or aerial applications are not recommended.


In most environments, only the clovers will demand spring control. Both crimson and balansa clovers can be successfully terminated with glyphosate and 2,4-D. Radish will terminate with multiple nights in the teens. If radish survive, glyphosate and 2,4-D provide effective control.

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