Symptoms
Interveinal fields of younger leaves brighten whereas the veins remain green. With ongoing deficiency youngest leaves turn completely yellow.
Leaves are smaller than normal.
Reasons
Manganese deficiency
Cauliflower - Chlorosis
Symptoms
Symptoms of manganese deficiency are yellow mottling between leaf veins and crinkling of the young and medium leaves. Furthermore leaves roll or curl upwards.
With ongoing deficiency the youngest leaves turn completely yellow.
Reasons
Manganese deficiency on leaves
Manganese deficiency made worse by
Organic soils
Sandy soils
High pH
Cold wet periods
Fluffy soils
Manganese is important for
Boosts growth
Ensures good crop quality with high sugar and vitamin C contents
Yara recommended fertilizers for Manganese
YaraVita MANTRAC PRO
YaraVita MANTRAC PRO
Cauliflower: 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.