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 - Growth retardation

Symptoms
Leaves of Mn deficient plants show chlorotic spots and streaks which turn gray-white to brown and coalesce. Symptoms appear on younger and central leaves. Leaves are kinked or bend down when the spotting is intense. Plant growth is stunted.

Causes
Manganese deficiency Mn deficiency is enhanced by cool, dry weather.

Rye - Growth retardation

Symptoms
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.

Causes
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.

Rye - Chlorosis

Symptoms
Young leaves of Mn deficient plants show chlorotic spots and streaks which turn brown to gray-white and coalesce. Strongly affected leaf blades bend.

Causes
Manganese deficiency

Rye - Chlorosis

Symptoms
Mn deficient plants show chlorotic spots and streaks which turn brown/gray-white, coalesce and may expand over the older leaves. Strongly affected leaf blades bend.

Causes
Manganese deficiency It is characteristic 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.

Rye - Deformation

Symptoms
Leaves have grey specks or light brown lesions and they break/bend over near the centre section. Some leaves show signs of chlorosis which eventually hides the lesions.

Causes
Manganese deficiency (Grey speck) May be confused with applications of pesticides or foliar fertilisers.

Rye - Chlorosis

Symptoms
Leaves of Mn deficient plants show chlorotic spots and streaks which turn gray-white to brown and coalesce. Symptoms appear on younger and central leaves. Leaves are kinked or bend down when the spotting is intense. Plant growth is stunted.

Causes
Manganese deficiency Mn deficiency is enhanced by cool, dry weather.

Rye - Chlorosis

Symptoms
Leaves of Mn deficient plants show chlorotic spots and streaks which turn gray-white to brown and coalesce. Symptoms appear on younger and central leaves. Leaves are kinked or bend down when the spotting is intense. Plant growth is stunted.

Causes
Manganese deficiency Mn deficiency is enhanced by cool, dry weather.

Rye - Chlorosis

Symptoms
Leaves of Mn deficient plants show chlorotic spots and streaks which turn gray-white to brown and coalesce. Symptoms appear on younger and central leaves. Leaves are kinked or bend down when the spotting is intense. Plant growth is stunted.

Causes
Manganese deficiency Mn deficiency is enhanced by cool, dry weather.

Manganese deficiency made worse by

  • Organic soils
  • Sandy soils
  • High pH
  • Cold wet periods
  • Fluffy soils

Manganese is important for

  • Better crop establishment
  • Improved winter hardiness and tillering
  • Improved disease resistance
  • Better grain quality

Yara recommended fertilisers for Manganese deficiency

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

YaraVita MANTRAC PRO

YaraVita MANTRAC PRO

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.

Read more about YaraVita MANTRAC PRO

Other recommended products

YaraVita CROPLIFT PRO
YaraVita CROPLIFT PRO
Cereals: 2.5 kg/ha. Repeat at 10 to 14 day intervals as necessary. Avoid applications during flowering. Water rate: 200 l/ha.
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.
YaraVita MANTRAC DF
YaraVita MANTRAC DF
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.