Why Sylvana?

  • Excellent retail quality: beautiful, bright & smooth skin;
  • Very tasty;
  • Uniform in size and shape;
  • Large tubers;
  • Yields: 40 ton per ha
  • Good adaptation to adverse weather conditions;

Variety characteristics:

  • Cooking type: slightly mealy
  • Harvestable crop from 100 days onwards
  • Yield mature: 40 ton per ha
  • Tuber size: large
  • Tuber shape: round-oval/oval
  • number of tubers: 12-14
  • Flesh colour after cooking: yellow
  • Skin colour: yellow
  • Dry matter content: 19,4 %
  • Foliage blight: susceptible
  • Tuber blight: nearly resistant
  • Common scab: nearly resistant

Planting

  • Row distance: at least 75 cm
  • Planting distance: 35 cm
  • Planting depth: normal

Fertilizer

  • Adapt fertilization to soil analysis;
  • N: We recommend 240 kg Nitrogen per ha (including soil supply);
  • N: a split gift of N is advisable, with 2/3 before planting and 1/3 at flowering/tuberisation
  • Split application is advisable to keep foliage vigorous, resulting in bigger tubers;
  • Phosphorous and Potassium/Kalium according to standard use

Pre-treatment

  • Keep the seed in cold store to prevent physiological ageing and dehydration;
  • Take the seed out of the cold store on time, at around 3 to 4 weeks prior to planting. Planting is done best with tuber in ‘white buds stadium’: see photo; place bags in ventilated area at ambient temperature. Do not pile the bags up;
  • Do not de-sprout in order to prevent little potato disorder;
  • Treatment against Rhizoctonia is advised, as well as treatment against Silverscurf and other soil borne (skin) diseases; Azoxystrobine as a soil application shows good results

Growing attention points

  • Sylvana has a good drought tolerance;
  • Emergence is somewhat slow, later on foliage develops well;
  • Spray timely & regularly to prevent late blight;
  • Later in the season use products with strong tuber protection against tuber blight;
  • Use products that have an effect on Alternaria solani and Alternaria alternata

Haulmkilling and harvest

Take care of a good skin set period before harvesting, to harden the skin completely.