Nutriments
Betterave - Deformation
Symptômes
The leaves are cupped upwards and the whole plant has an upright appearance. Younger leaves show chlorotic leaf blades, while the leaf veins and a small margin around them remain green.
Raisons
Manganese deficiency.
Iron deficiency symptoms start like manganese deficiency as intercostal chlorosis on younger leaves, but only the veins remain green then, and not a margin around them.
A lack of Magnesium and Zinc causes similar symptoms, but occurs on older leaves first.
Betterave - Deformation
Symptômes
Younger leaves show yellowing with intercostal chlorosis, while the leaf veins and a small margin around them remain green.
The leave margins are cupped upwards and the whole plant has an upright appearance.
Raisons
Manganese deficiency.
Iron deficiency symptoms start like manganese deficiency as intercostal chlorosis on younger leaves, but only the veins remain green then, and not a margin around them.
A lack of Mg and Zn causes similar symptoms, but occurs on older leaves first.
Manganese deficiency aggravé par
- Organic soils
- Sandy soils
- High pH
- Cold wet periods
- Fluffy soils
Manganèse est important pour
- Promotion of healthy foliage
- Increases beet yields
- Increased sugar levels
Yara a recommandé cet engrais pour Manganèse
YaraVita MANTRAC PRO
Sugar Beet: 1 l/ha from 4-6 leaf stage. For moderate to severe deficiency, repeat applications at 10-14 day intervals. Water rate: 200 l/ha.
En savoir plus YaraVita MANTRAC PRO
