Raps - Hollowness
Symptome
Shortened internodes of the shoot lead to a stunted appearance. Splits and hollow lesions occur in stems and truncs.
Gründe
Boron deficiency
Raps - Deformation
Symptome
Symptoms of boron deficiency start on the younger part of the plant. The leaves are small, deformed, crinkled and brittle. They show necrotic patches at leaf margin and lamina. Shortened internodes of the shoot lead to a stunted appearance. Splits and hollow lesions occur in stems and truncs.
Gründe
Boron deficiency
Deformation of young leaf margins is similar to Ca deficiency.
Raps - Deformation
Symptome
Symptoms of boron deficiency start on the younger part of the plant. The upper and middle leaves are small and stunted, deformed, crinkled and brittle. They may show necrotic patches at leaf margin and lamina.
Gründe
Boron deficiency
Deformation of young leaf margins is similar to Ca deficiency.
Raps - Hollowness
Symptome
Hollow brown lesions occur in the stem base.
Gründe
Boron deficiency
Boron deficiency wird verschlimmert durch
- Sandy soils
- Alkaline soils
- Soils low in organic matter
- High levels of nitrogen
- High levels of calcium
- Cold wet weather
- Periods of drought
Bor ist wichtig für
- Better crop establishment and reduced plant losses over winter
- Increases nutrient levels in the crop for better spring regrowth
- Improved flowering and more even maturity
- Boosts grain yield and oil content of seed
Empfohlene Yara Dünger für Bor
YaraVita BORTRAC 150
Oilseed Rape: For a single application. 3 l/ha at onset of stem extension. For moderate deficiency, 3 l/ha at 4 to 6 leaf stage and 3 l/ha at onset of stem extension. An extra application can be made between 10 and 14 days later or up to the start of flowering. Water rate: 50 to 200 l/ha.
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