Magnesium deficiency-Melons

Symptoms
Leaves develop interveinal chloroses, which may become whitish and finally necrotic. Leaf veins remain green. This starts with the older leaves and spreads to the younger material. Fruit yields are reduced.

Reasons
Magnesium deficiency. A regular Mg supply is needed throughout the life of the crop. Mg uptake can be depressed by an excess of other cations (K+; NH4+; Ca2+). Particular care is therefore needed to ensure that magnesium, potassium and calcium supplies are balanced. Symptoms of magnesium undersupply may easily be confused with manganese toxicity or fungus diseases.

Symptoms
Leaves develop interveinal chloroses, which may become whitish and finally necrotic. Leaf veins remain green. This starts with the older leaves and spreads to the younger material. Fruit yields are reduced.

Reasons
Magnesium deficiency. A regular Mg supply is needed throughout the life of the crop. Mg uptake can be depressed by an excess of other cations (K+; NH4+; Ca2+). Particular care is therefore needed to ensure that magnesium, potassium and calcium supplies are balanced. Symptoms of magnesium undersupply may easily be confused with manganese toxicity or fungus diseases.

Symptoms
Leaves develop interveinal chloroses, which may become whitish and finally necrotic. Leaf veins remain green. This starts with the older leaves and spreads to the younger material. Fruit yields are reduced.

Reasons
Magnesium deficiency. A regular Mg supply is needed throughout the life of the crop. Mg uptake can be depressed by an excess of other cations (K+; NH4+; Ca2+). Particular care is therefore needed to ensure that magnesium, potassium and calcium supplies are balanced. Symptoms of magnesium undersupply may easily be confused with manganese toxicity or fungus diseases.