Light green areas within the stand indicate affected plants. The tramlines are not concerned. Because of the soil compaction the manganese is better available in these areas.
Organic soils. Sandy soils. High pH. Cold wet periods. Fluffy soils.
Better crop establishment. Improved winter hardiness and tillering. Improved disease resistance. Better grain quality.
Manganese deficiency Characteristic symptoms of Mn deficiency are the dark green tractor lanes within the chlorotic area. Here the soil is compressed and less Mn oxidation occurs. It is common that Mn deficiency chlorosis occurs in irregular patches within the stand. The chlorotic mottling is seen first on youngest fully expanded leaves. The susceptibility for manganese deficiency raises with high pH, high humus content, loose soil structure. Often occurs in early spring as it is too cold for manganese deoxidizing bacteria.
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Cereals: 1 l/ha from 2 leaf stage to second node detectable (Zadok's G.S. 12 to 32). For moderate to severe deficiency repeat applications at 7 to 14 day intervals. Also, 0.25 l/ha from third node detectable to the end of booting (Zadok's G.S. 33 to 49). Water rate: 200 l/ha. Seed Dressing: 2 to 6 litres per tonne.
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Cereals: 1 l/ha at 2 leaf stage to second node detectable (Zadok's G.S. 12 to 32). Water rate: 200 l/ha. For severe deficiency, increase to 2 l/ha or repeat at the above rate. For autumn-sown crops, an application prior to winter dormancy is strongly recommended.
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Cereals: 1 l/ha in 200 litres of water. For severe deficiency, increase to 2 l/ha or repeat at the above rate. Timing: 2 leaf stage to second node detectable (Zadok's G.S. 12 to 32). For autumn-sown crops, an application prior to winter dormancy is strongly recommended.
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Cereals: 3 kg/ha in 200 l/ha water. For severe deficiency, repeat applications should be made at the above rate at 10-14 day intervals, 2 leaf stage to first node detectable (Zadok's G.S. 12-31). For autumn-sown crops, an application prior to winter dormancy is strongly recommended.
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Cereals: 1 to 3 l/ha from the 2 leaf stage to second node detectable (Zadok's G.S. 12 to 32). Repeat applications at 10 to 14 day intervals, within this timing, if necessary. For autumn sown crops, an application prior to winter dormancy may also be beneficial. In addition, 1 l/ha from second node detectable to flag leaf fully emerged (Zadoks G.S. 32 to 39). Water rate: 50 to 200 l/ha.
