Symptoms
Young leaves show yellogreen mottling, caused by interveinal chlorosis. Leaf blades are enlarged.
Reasons
Manganese deficiency
Over-liming, the occurrence of very loose, highly aerated soils and also drought render Mn less available. Crops grown in high organic matter, in peat soils or substrates also suffer from poor Mn availibility.
Broccoli - Size enlarged
Symptoms
Young leaves show yellogreen mottling, caused by interveinal chlorosis. Leaf blades are enlarged.
Reasons
Manganese deficiency
Over-liming, the occurrence of very loose, highly aerated soils and also drought render Mn less available. Crops grown in high organic matter, in peat soils or substrates also suffer from poor Mn availibility.
Broccoli - Size enlarged
Symptoms
Young leaves show yellogreen mottling, caused by interveinal chlorosis. All leaves are a paler green than normal. Leaf blades are enlarged.
Reasons
Manganese deficiency (right)
Over-liming, the occurrence of very loose, highly aerated soils and also drought render Mn less available. Crops grown in high organic matter, in peat soils or substrates also suffer from poor Mn availibility.
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
