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
Severe N deficiency (right) results in poor yielding caused by a reduction of tiller number as well as diminished stem, ear and seed size.

Causes
Nitrogen deficiency (right)

Rye - Growth retardation

Symptoms
Characteristic symptoms of N deficiency are reduced vigor, smaller leaves and a pale green or yellowish leaf color. The symptoms first become visible on the old leaves which turn yellow and wither at progressing deficiency. Extreme N deficiency causes early senescence and diminished ear size.

Causes
Nitrogen deficiency (left) Sulphur deficiency, low pH and root damage cause similar symptoms.

Rye - Growth retardation

Symptoms
Characteristic symptoms of N deficiency (right) are reduced vigor, smaller leaves and a pale green or yellowish leaf color. The symptoms first become visible on the old leaves which turn yellow and wither at progressing deficiency. Extreme N deficiency causes early senescence and diminished ear size.

Causes
Nitrogen deficiency (right) Sulphur deficiency, low pH and root damage cause similar symptoms.

Rye - Chlorosis

Symptoms
Characteristic symptoms of N deficiency are reduced vigor, smaller leaves and a pale green or yellowish leaf color. The symptoms first become visible on the old leaves which turn yellow and wither at progressing deficiency. Necrosis starts on the leaf tip and progresses toward the leaf base. Extreme N deficiency causes early senescence and diminished ear size.

Causes
Nitrogen deficiency(bottom) Sulphur deficiency, low pH and root damage cause similar symptoms. Symptoms of N and S deficiency in wheat and other small grains are very similar, thus a tissue analysis is often necessary to reveal the cause.

Rye - Growth retardation

Symptoms
Severe N deficiency (left) results in poor yielding caused by a reduction of tiller number as well as diminished stem, ear and seed size.

Causes
Nitrogen deficiency (left)

Rye - Growth retardation

Symptoms
Starting on the older leaves, N deficiency causes chlorotic yellowing and stunted growth of cereal plants.

Causes
Nitrogen deficiency Symptoms of N and S deficiency in cereals are very similar, thus a tissue analysis is often necessary to reveal the cause.

Rye - Growth retardation

Symptoms
Starting on the older leaves, N deficiency causes chlorotic yellowing and stunted growth of cereal plants. Tillering and ear size are reduced. Severe lack of N leads to early senescence.

Causes
Nitrogen deficiency (right) Small grains are generally sensitive to insufficient N Symptoms of N and S deficiency in cereals are very similar, thus a tissue analysis is often necessary to reveal the cause.

Rye - Growth retardation

Symptoms
Severe N deficiency (right) results in poor yielding caused by a reduction of tiller number, stem and ear size.

Causes
Nitrogen deficiency

Nitrogen deficiency vs. optimum made worse by

  • Low or high pH soils
  • Sandy or light soils (leaching
  • ) Low organic matter
  • Drought conditions
  • High rainfall (leaching) or heavy irrigation
  • Addition or high levels of non-decomposed organic matter/manure (eg straw)
  • Fast growing crops

Nitrogen is important for

  • Lusher, greener growth
  • Optimal tiller production
  • Increased grain yields and protein content
  • Improved grain quality

Yara recommended fertilisers for Nitrogen deficiency

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.

Read more about YaraVita CROPLIFT PRO

YaraVita SAFE-N 300

YaraVita SAFE-N 300

Cereals: 10 to 20 l/ha from tillering to the end of the milk development stage in grain ripening (Zadoks G.S. 21 to 79). Repeat applications at 10 to 14 day intervals. Water rate: 200 l/ha. N.B. Note that later foliar nitrogen applications may raise grain nitrogen status.

Read more about YaraVita SAFE-N 300

Other recommended products

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.