Colza - Deformation
Symptômes
Symptoms of calcium deficiency are visible on younger leaves first. Starting from leaf tips and margins, they become pale green to grey brown. The lamina is shrivelled, ripped and shows a fluttering appearance.
The young leaves of the top shoots are deformed and their tips are bent down.
Raisons
Calcium deficiency
Calcium deficiency aggravé par
- Acidic soils
- Sandy or light soils (leaching)
- Acid peat soils
- Soils rich in sodium
- Soils rich in aluminium
- Drought conditions
- Fruit high in nitrogen or potassium
- Large fruit
Calcium est important pour
- Improved flowering and pod fill
- Increased yield
Yara a recommandé cet engrais pour Calcium
YaraVita BRASSITREL PRO
Oilseed Rape: 3 to 4 l/ha at the 4 to 9 leaf stage and again at the onset of the rapid stem extension phase up to the start of flowering. Repeat at 10 to 14 day intervals within these growth stages as necessary. Also, 3 l/ha at the end of petal fall. Water rate: 50 to 200 l/ha.
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