Nutrients

N Nitrogen
P Phosphorus
K Potassium
Mg Magnesium
Ca Calcium
S Sulphur
B Boron
Cu Copper
Fe Iron
Mn Manganese
Mo Molybdenum
Zn Zinc
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Rye - Deformation

Symptoms
Ears of Cu deficient plants are often trapped in the sheath and emerge with white tips and blind spikelets. Plants show dry, white and twisted or curled leaf tips (white tip). Young leaves wilt on their tips, whereas the basal leaves remain dark green.

Causes
Copper deficiency Severe drought, heavy frosts and herbicide damage can cause blind ears, too.

Rye - Wilting

Symptoms
Young leaves show dry, white and twisted or curled leaf tips (white tip). The basal leaves remain dark green. The complete plant growth is stunted.

Causes
Copper deficiency

Rye - Wilting

Symptoms
Young leaves show dry, white and twisted or curled leaf tips (white tip). The basal leaves remain dark green. The complete plant growth is stunted.

Causes
Copper deficiency

Rye - Deformation

Symptoms
Ears of Cu deficient plants are often trapped in the sheath and emerge with white tips and blind spikelets. Less severe symptoms may be seen as curved ears which do not ripen with an accumulation of the dark coloured melanin.

Causes
Copper deficiency

Rye - Deformation

Symptoms
Ears are often trapped in the sheath and emerge with white tips and blind spikelets. Plants show dry, white and twisted or curled leaf tips (white tip).

Causes
Copper deficiency

Rye - Size reduced

Symptoms
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.

Causes
Copper deficiency

Copper deficiency made worse by

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

Copper is important for

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

Yara recommended fertilisers for Copper deficiency

YaraVita COPTREL 500

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

Read more about YaraVita COPTREL 500

YaraVita GRAMITREL

YaraVita GRAMITREL

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. Seed Dressing: 3 to 6 litres per tonne.

Read more about YaraVita GRAMITREL

Other recommended products

YaraVita MANCOZIN
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. Seed Dressing: Typically 3 litres per tonne. Rate can be increased up to 6 litres per tonne if necessary.
YaraVita MANCUFLO
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. Seed Dressing: Typically 3 litres per tonne. Also, up to 6 litres per tonne if necessary.