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 - Chlorosis

Symptômes
Proceeding from the leaf tip, older leaves become pale green with beading of chlorophyll (easy to reveal by holding leaf to sunlight). Striped appearence because of interveinal chlorosis. Small bright freckles spread over the leaf. Leaf tip shows beginning necrosis.

Raisons
Magnesium deficiency

Céréales - Growth retardation

Symptômes
Older leaves become pale green with beading of chlorophyll. Chlorosis and Necrosis of leaf margins, proceeding from leaf tip, can be seen in more severe cases. Easy to reveal by holding leaf to sunlight.

Raisons
Magnesium deficiency Drought can also cause marginal necrosis.

Céréales - Growth retardation

Symptômes
Older leaves become pale green with beading of chlorophyll. Chlorosis and Necrosis of leaf margins, proceeding from leaf tip, can be seen in more severe cases. Plant growth is stunted. Easy to reveal by holding leaf to sunlight.

Raisons
Magnesium deficiency Drought can also cause marginal necrosis.

Céréales - Chlorosis

Symptômes
Leaves appear pale green with beading of the chlorophyll. Leaves with more severe Mg deficiency (centre) show leaf margin necrosis.

Raisons
Magnesium deficiency Drought can cause similar symptoms of margin necrosis.

Céréales - Chlorosis

Symptômes
Affected leaves appear pale green with beading of the chlorophyll.

Raisons
Magnesium deficiency

Céréales - Chlorosis

Symptômes
Affected leaves appear pale green with beading of the chlorophyll.

Raisons
Magnesium deficiency

Magnesium deficiency aggravé par

  • Sandy soils
  • Acidic soils
  • Potassium rich soils
  • Soils receiving high potash applications
  • Cold wet periods

Magnésium est important pour

  • Better crop establishment
  • Improved winter hardiness and tillering
  • Better grain quality

Yara a recommandé cet engrais pour Magnésium

YaraVita MAGFLO 300

YaraVita MAGFLO 300

Cereals: 2-4 l/ha at 2 leaf stage to first node detectable (G.S. 12-31). For moderate to severe deficiency, repeat applications at 10-14 day intervals. 2 l/ha at flag leaf ligule just visible to anthesis complete (G.S. 39-69). Water rate: 200 l/ha.

En savoir plus YaraVita MAGFLO 300

Autres produits recommandés

YaraVita CROP BOOST
Cereals: 5 l/ha at tillering. Repeat at 10 to 14 day intervals if necessary. Water rate: 200 l/ha.
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.
YaraVita MAGPHOS K
Cereals: 5 l/ha at tillering. Repeat at 10-14 day intervals if necessary. Also apply from ear emergence until the end of flowering (Zadok's G.S. 51 to 69). Water rate: 200 l/ha.