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viterra® Cover crop blend


... the N-flexible Potato trio


  • Reduction of viral Corky Ring Spot in potatoes with multi-resistant oil radish DEFENDER, rough oats PRATEX and spring vetch.
  • The three partners complement each other ideally in rooting: tufted roots of PRATEX and spring vetch, as well as the taproot of DEFENDER enable rooting of the entire topsoil.
  • As a legume, spring vetch provides additional nitrogen, from which the other mixing partners also benefit
  • High flexibility with changing nutrient availability
  • Fast-growing with intensive weed suppression
  • Abundant organic matter vitalises soil beneficial organisms
  • Moderate legume content of < 30 seed % makes use possible within the framework of voluntary agreements (e.g. water conservation)

Blend details:

Seeds % : 49 % Oil radish DEFENDER
28 % Saia oat / Bristle oat PRATEX
23 % Common vetch NEON
Free of crucifers : no
Free of legumes : no
Winter hardy : no

Crop rotation suitability:

Oilseed rape+
Sugar beets++
+ suitable / ++ strongly recommended


  • Reduction of Beet Cyst Nematodes
  • No multiplication of beet cyst nematodes
  • Green manure
  • Biogas- and fodder production
  • Humus formation
  • Protection against erosion
  • Nitrogen fixation
  • Mulch sowing

Agronomic features:

Weed suppression: 8
Protection against erosion: 8
Ground water protection / Nitrogen conservation: 8
Humus formation: 8
Cold- and frost resistance: 4
Drought tolerance: 6
bad / early / short / low
good / late / long / high
Type of rootTuft root + Tap root
Rooting depth180 cm

Cultivation recommendations:

Recommended sowing rate 60 kg/ha
Sowing depth 2 - 3 cm
Sowing period mid July to start September
Fertilization Only organic fertilisation is permissible within the scope of greening (except sewage sludge).
Relevant legume content according to DüV: 27 seed %, 57 weight %.
Crop protection Usually there is no crop protection required
Sowing method Drill sowing ensure high crop emergences

23.12.2022 09:36:22 // 4.00