Nutriments

N Azote
P Phosphore
K Potassium
Mg Magnésium
Ca Calcium
S Soufre
B Bore
Cu Cuivre
Fe Fer
Mn Manganèse
Mo Molybdène
Zn Zinc

Céréales - Spots

Symptômes
In the present case, a mature leaf exhibits irregular light brown lesions, bordered by a dark brown margin.

Raisons
Zinc deficiency

Céréales - Growth retardation

Symptômes
Affected plants are paler in colour than normal and the leaves have a purplish tint. Necrotic spots (often light brown with dark margin) occur on the older leaves. Growth is also reduced due the affect of zinc on chlorophyll function. Internodes are shortened.

Raisons
Zinc deficiency

Céréales - Chlorosis

Symptômes
Medium leaves show interveinal chlorosis.

Raisons
Zinc deficiency on durum wheat

Zinc deficiency aggravé par

  • Organic soils
  • High pH soils
  • Soils rich in phosphorus
  • Soils receiving high phosphorus application
  • Cold wet conditions

Zinc est important pour

  • Increased fertility (number of grains per ear)
  • Better grain quality

Yara a recommandé cet engrais pour Zinc

YaraVita GRAMITREL

YaraVita GRAMITREL

Cereals: 1 to 3 l/ha from the 2 leaf stage to second node detectable (Zadok's G.S. 12 to 32). Repeat applications at 10 to 14 day intervals, within this timing, if necessary. For autumn sown crops, an application prior to winter dormancy may also be beneficial. In addition, 1 l/ha from second node detectable to flag leaf fully emerged (Zadoks G.S. 32 to 39). Water rate: 50 to 200 l/ha. Seed Dressing: 3 to 6 litres per tonne.

En savoir plus YaraVita GRAMITREL

YaraVita MANCOZIN

YaraVita MANCOZIN

Cereals: 1 l/ha at 2 leaf stage to second node detectable (Zadok's G.S. 12 to 32). Water rate: 200 l/ha. For severe deficiency, increase to 2 l/ha or repeat at the above rate. For autumn-sown crops, an application prior to winter dormancy is strongly recommended. Seed Dressing: Typically 3 litres per tonne. Rate can be increased up to 6 litres per tonne if necessary.

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YaraVita ZINTRAC 700

YaraVita ZINTRAC 700

Cereals: 1 l/ha from 2 leaf stage to second node detectable (Zadok's G.S. 12 to 32). Also, 0.5 l/ha from ear fully emerged to the end of flowering (Zadok's G.S. 59 to 69). Water rate: 50 to 200 l/ha. Seed Dressing: Typical rate: 3 litres per tonne. Increase up to 8 litres per tonne if necessary.

En savoir plus YaraVita ZINTRAC 700