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Copper Deficiency - Barley

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Symptom description

Ears of Cu deficient plants show blind grain sites (blind spikelets) or poor grain formation. As the ears are lightweight they stand more upright than sufficiently supplied ones and give the plant a different habitus.

Made worst by

Organic soils. Chalky soils. Sandy soils. Reclaimed heathland. High nitrogen applications.

Important for

Increased fertility (number of grains per ear). Better grain quality.

Cause description

Copper deficiency

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Yara recommends

YaraVita COPTREL 500

Cereals: 0.5 l/ha from 2 leaf to second node detectable (Zadok's G.S. 12 to 32). For moderate to severe deficiency repeat applications at 10 to 14 day intervals, within the growth stages indicated. Water rate: 200 l/ha

Other recommended products (2)

YaraVita MANCOZIN

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.

YaraVita MANCUFLO

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.