Oilseed Rape - Chlorosis
Symptoms
Magnesium deficiency always shows initially on the older leaves. Chlorosis develops between the veins, while a narrow area on each side of the veins remains green. The leaf margins - and with proceeding deficiency also the intercostal areas - become necrotic.
Causes
Magnesium deficiency
Fe and Mn deficiency also show intercostal chlorosis and necrosis, but the symptoms start on younger leaves.
Oilseed Rape - Chlorosis
Symptoms
Magnesium deficiency always shows initially on the older leaves.
Chlorosis develops between the veins, while a narrow area on each side of the veins remains green. The leaf margins - and with proceeding deficiency also the intercostal areas - become necrotic. The discoloration of the leaves can vary from chlorotic-yellow to purple/brown.
Causes
Magnesium deficiency
Fe and Mn deficiency also show intercostal chlorosis and necrosis, but the symptoms start on younger leaves.
Oilseed Rape - Chlorosis
Symptoms
Magnesium deficiency always shows initially on the older leaves.
Chlorosis develops between the veins, while a narrow area on each side of the veins remains green. The leaf margins - and with proceeding deficiency also the intercostal areas - become necrotic. The discoloration of the leaves can vary from chlorotic-yellow to purple/brown.
Causes
Magnesium deficiency
Fe and Mn deficiency also show intercostal chlorosis and necrosis, but the symptoms start on younger leaves.
Oilseed Rape - Chlorosis
Symptoms
Magnesium deficiency always shows initially on the older leaves. Chlorosis develops between the veins. A narrow area on each side of the veins remains green. The leaf margins and intercostal, chlorotic areas become necrotic.
Causes
Magnesium deficiency
Fe and Mn deficiency also show intercostal chlorosis and necrosis, but the symptoms start on younger leaves.
Oilseed Rape - Chlorosis
Symptoms
Magnesium deficiency always shows initially on the older leaves. Chlorosis develops between the veins. A narrow area on each side of the veins remains green. Later on, the leaf margins and intercostal, chlorotic areas become necrotic.
Causes
Magnesium deficiency
Fe and Mn deficiency also show intercostal chlorosis and necrosis, but the symptoms start on younger leaves.
Oilseed Rape - Chlorosis
Symptoms
Magnesium deficiency always shows initially on the older leaves.
Chlorosis develops between the veins, while a narrow area on each side of the veins remains green. The leaf margins - and with proceeding deficiency also the intercostal areas - become necrotic. The discoloration of the leaves can vary from chlorotic-yellow to purple/brown.
Causes
Magnesium deficiency
Fe and Mn deficiency also show intercostal chlorosis and necrosis, but the symptoms start on younger leaves.
Oilseed Rape - Chlorosis
Symptoms
Magnesium deficiency always shows initially on the older leaves. Chlorosis develops between the veins. A narrow area on each side of the veins remains green. Later on, the leaf margins and intercostal, chlorotic areas become necrotic.
Causes
Magnesium deficiency(right)
Fe and Mn deficiency also show intercostal chlorosis and necrosis, but the symptoms start on younger leaves.
Oilseed Rape - Chlorosis
Symptoms
Magnesium deficiency always shows initially on the older leaves.
Chlorosis develops between the veins, while a narrow area on each side of the veins remains green. The leaf margins - and with proceeding deficiency also the intercostal areas - become necrotic. The discoloration of the leaves can vary from chlorotic-yellow to purple/brown.
Causes
Magnesium deficiency
Fe and Mn deficiency also show intercostal chlorosis and necrosis, but the symptoms start on younger leaves.
Magnesium deficiency made worse by
- Sandy soils
- Acidic soils
- Potassium rich soils
- Soils receiving high potash applications
- Cold wet periods
Magnesium is important for
- Better crop establishment
- Reduced plant losses over winter
- Increases nutrient levels in the crop for better spring regrowth
- Improved flowering
- More even maturity
- Boosts grain yield and oil content of seed
Yara recommended fertilisers for Magnesium deficiency
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.
Read more about YaraVita BRASSITREL PROYaraVita MAGPHOS K
Oilseed Rape: For a single application, 5 l/ha at onset of stem extension. For moderate deficiency, 5 l/ha at 4 to 6 leaf stage and at onset of stem extension. An extra application can be made 10 to 14 days later for severe deficiency. Water rate: 200 l/ha
Read more about YaraVita MAGPHOS K
