Nutrientes

N Nitrogênio
P Fósforo
Mg Magnésio
S Enxofre
B Boro
Cu Cobre
Mn Manganês
Zn Zinco

Beterraba-sacarina - Discolouration

Sintomas
Phosphorus deficiency inhibits growth of the sugar beet plants, and the plants have a stiff appearance. The colour of the leaves ranges from dark green to dull blue-green. Furthermore, anthocyan may be visible, giving the leaf veins and margins a red/violet colour.

Causas
Phosphorus deficiency. Excess N fertilisation also causes dark green leaves, but the plants do not remain smaller then, and they do not have a stiff appearance as they have at P deficiency.

Phosphorus deficiency piorado por

  • Acidic or very alkaline (calcareaus) soils
  • Low organic matter
  • Cold or wet conditions
  • Crops with a poorly developed root system
  • Soils with low P reserves
  • Soils with a high phosphate capacity
  • Iron rich soils

Fósforo É importante para

  • Better crop establishment
  • Improved early root development
  • Improved yield
  • Even crop maturation

Produtos recomendados pela Yara Fósforo

YaraVita MAGPHOS K

YaraVita MAGPHOS K

Sugar Beet: 5 l/ha at 4-6 leaf stage. Repeat applications may be made at 10-14 day intervals. Water rate: 200 l/ha.

Leia mais sobre YaraVita MAGPHOS K

Outros produtos recomendados

YaraVita CROPLIFT PRO
Sugar Beet: 2.5 to 5 kg/ha. Repeat at 10 to 14 day intervals as necessary. Water rate: 200 l/ha.
YaraVita SENIPHOS
Sugar Beet: 5 l/ha at 4-6 leaf stage. For moderate to severe deficiency, repeat applications should be made at the above rate at 10-14 day intervals. Water rate: 200 l/ha.