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
The number of grains sites and the size of grain is reduced under S deficiency. S deficient plants show a bright chlorotic, yellow green colour and stunted growth. Chlorosis caused by sulphur deficiency is observed at the young leaves first.

Causes
Sulphur deficiency N deficiency and root damage may cause similar symptoms.

Rye - Growth retardation

Symptoms
S deficient plants show a bright chlorotic, yellow green colour and stunted growth. Chlorosis caused by sulfur deficiency can often be observed at the young leaves first - in contrast to deficiency symptoms caused by a lack of nitrogen. The number of grains sites and the size of grain is reduced under S deficiency.

Causes
Sulphur deficiency (right) N deficiency and root damage may 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
Ears are small.

Causes
Sulphur deficiency (left)

Rye - Growth retardation

Symptoms
Leaves of S deficient plants exhibit a bright yellow-green chlorotic colour. Chlorosis normally starts on the young leaves. The whole plant including the ears shows stunted growth and yields poorly.

Causes
Sulphur 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
Leaves of S deficient plants exhibit a bright yellow-green chlorotic colour. Chlorosis normally starts on the young leaves. The whole plant including the ears shows stunted growth and yields poorly.

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

Sulphur deficiency made worse by

  • Acidic soils
  • Light, sandy soils (leaching)
  • Low organic matter
  • Poorly aerated soils (waterlogged soils
  • ) Areas with low industrial emissions

Sulphur is important for

  • Healthy green foliage
  • Even crop maturity
  • More efficient use of nitrogen by the crop
  • Improved grain protein contents

Yara recommended fertilisers for Sulphur deficiency

YaraBela AXAN

YaraBela AXAN

Winter Wheat: 500-750 kg/ha applied in 2-3 splits between GS 31-37 Winter Barley: 500 kg/ha applied at GS 31-32. Spring Barley: 300 kg/ha at GS 13-20. Exact recommendation depends on soil analysis and nutrient management plan. Refer to your local Yara area manager for detailed recommendation.

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YaraBela SULPHAN

YaraBela SULPHAN

Cereals: Exact recommendation depends on soil analysis and nutrient management plan. Refer to your local Yara area manager for detailed recommendation.

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YaraVita THIOTRAC 300

YaraVita THIOTRAC 300

Cereals: 5 l/ha at pseudo stem erection to first node detectable (Zadok's G.S. 30-31). For moderate to severe deficiency, repeat applications at 10-14 day intervals. Water rate: 200 l/ha. Wheat Only: In addition: 3 to 5 l/ha at half inflorescence (ear) emerged to end of milk development stage in grain ripening (Zadok's G.S. 55-79) or two applications of 5 l/ha in the period flag leaf ligule just visible to the end of the milk development stage in grain ripening (Zadok's G.S. 39 to 79). Water rate: 200 l/ha.

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Other recommended products

YaraBela SULFAN
YaraBela SULFAN
Winter Wheat: up to 125 kg/ha as the first spring application Actual rates should be based on previous SO3 use and cropping history together with soil and leaf analysis information. Always undertake a nutrient management plan to check sufficiency of all nutrients. Contact Yara area manager or agronomist for more information.