Manganese deficiency-Maize | Yara South Africa

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Nutrients

Maize - Growth retardation

Symptoms
Slight manganese undersupply produces hardly any visible symptoms. Severely affected plants show pale foliage with flaccid growth form. The leaves become chlorotic with white interveinal streak leasions.

Reasons
Mild manganese deficiency

Manganese deficiency made worse by

Organic soils
Sandy soils
High pH
Cold wet periods
Fluffy soils

Manganese is important for

Development of maximum green leaf area
Healthy growth of young plants

Yara recommended fertilizers for Manganese

YaraTera CHELATE 1089

Maize: Apply 2 kg/ha before planting (can be coated on pre-plant fertilizers) and a further 1 kg/ha at 3, 5, 7 weeks after planting.

YaraTera CHELATE 1090

Maize: Apply 2 kg/ha before planting (can be coated on pre-plant fertilizers) and a further 1 kg/ha at 3, 5, 7 weeks after planting.

YaraTera REXOLIN Mn13

YaraVita MAIZE PHOLATE

Maize: 1 to 3 kg/ha at the 4 to 6 leaf stage. Also, 1 kg/ha just prior to flowering. Water rate: Tractor Driven Sprayer - 200 l/ha. Application through Irrigation System - 100,000 l/ha.

YaraVita MANCOZIN

Maize: 0.5 to 1.0 l/ha at 4-8 leaf stage. Water rate: 75-200 l/ha.

YaraVita MANTRAC PRO

Maize: 1 to 2 l/ha at 2 to 8 leaf stage. For moderate to severe deficiency repeat applications at 7 to 14 day intervals. Water rate: 30 to 200 l/ha. Seed Dressing: 4 to 8 litres per tonne.

YaraVita TRI-PHOLATE

Maize: Apply 2-3 kg/ha at 4-6 leaf stage. Apply a further 1 kg/ha just prior to flowering. Water rate: 200 l/ha for tractor driven sprayer. 100,000 l/ha for application through irrigation system.