Nutrients

N Nitrogen
P Phosphorus
K Potassium
Mg Magnesium
Ca Calcium
S Sulphur
B Boron
Cu Copper
Fe Iron
Mn Manganese
Zn Zinc
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Maize - Growth retardation

Symptoms
Pale yellow chlorotic zones running parallel to the midrib starting at base of leaves. Leaf margin, tip and midrib remain green. The youngest developing leaves may be totally clorotic yellow or white ('white bud'). A reddish to necrotic brown discolouration at the leaf margins and the stems may develop on basal plant parts, when deficiency is severe. Internode growth is reduced and leads to a stunted appearance.

Reasons
Zinc deficiency

Maize - Growth retardation

Symptoms
Pale yellow chlorotic zones running parallel to the midrib starting at base of leaves. Leaf margin, tip and midrib remain green. The youngest developing leaves may be totally clorotic yellow or white ('white bud'). A reddish to necrotic brown discolouration at the leaf margins and the stems may develop on basal plant parts, when deficiency is severe. Internode growth is reduced and leads to a stunted appearance.

Reasons
Zinc deficiency

Maize - Chlorosis

Symptoms
Pale yellow chlorotic zones running parallel to the midrib starting at base of leaves. Leaf margin, tip and midrib remain green. The youngest developing leaves may be totally clorotic yellow or white ('white bud'). A reddish to necrotic brown discolouration at the leaf margins and the stems may develop on basal plant parts, when deficiency is severe. Internode growth is reduced and leads to a stunted appearance.

Reasons
Zinc deficiency

Maize - Chlorosis

Symptoms
Pale yellow chlorotic zones running parallel to the midrib starting at base of leaves. Leaf margin, tip and midrib remain green. The youngest developing leaves may be totally clorotic yellow or white ('white bud'). A reddish to necrotic brown discolouration at the leaf margins and the stems may develop on basal plant parts, when deficiency is severe. Internode growth is reduced and leads to a stunted appearance.

Reasons
Severe zinc deficiency Sufficient zinc supply is very important for maize flowering and corn development. Deficiency symptoms can often be observed at wet and cold weather.

Maize - Chlorosis

Symptoms
Pale yellow-white chlorotic zones run parallel to the midrib starting at base of leaves, giving the leaf a streaky appearance. Symptoms generally start at the older leaves, but sometimes occur at the younger leaves first.

Reasons
Severe zinc deficiency Sufficient zinc supply is very important for maize flowering and corn development. Deficiency symptoms can often be observed at wet and cold weather.

Maize - Chlorosis

Symptoms
Pale yellow chlorotic zones running parallel to the midrib starting at base of leaves. Leaf margin, tip and midrib remain green. The youngest developing leaves may be totally clorotic yellow or white ('white bud'). A reddish to necrotic brown discolouration at the leaf margins and the stems may develop on basal plant parts, when deficiency is severe. Internode growth is reduced and leads to a stunted appearance.

Reasons
Severe zinc deficiency Sufficient zinc supply is very important for maize flowering and corn development. Deficiency symptoms can often be observed at wet and cold weather.

Zinc deficiency made worse by

  • Organic soils
  • High pH soils
  • Soils rich in phosphorus
  • Soils receiving high phosphorus application
  • Cold wet conditions

Zinc is important for

  • Good plant development early in the season
  • Improves yield
  • Brings harvest date forward

Yara recommended fertilisers for Zinc

YaraVita MAIZE BOOST

YaraVita MAIZE BOOST

Maize: 5 l/ha at the 4 to 8 leaf stage. Water rate: 30 to 200 l/ha. N.B. Do not spray in slow drying conditions. Alternatively: 2 to 5 l/ha at the 4 to 6 leaf stage. Repeat 10 to 14 days later if necessary. Water rate: 30 to 200 l/ha

Read more about YaraVita MAIZE BOOST

YaraVita MANCOZIN

YaraVita MANCOZIN

Maize: 1 l/ha at 4-8 leaf stage. For moderate to severe deficiency repeat applications at 10-14 day intervals. Water rate: 200 l/ha.

Read more about YaraVita MANCOZIN

YaraVita ZINTRAC 700

YaraVita ZINTRAC 700

Maize: 1 l/ha from 3 to 8 leaf stage. For severe deficiency, repeat application should be made at 10 to 14 day intervals. Water rate: 200 l/ha. Seed Dressing: 2 to 8 litres per tonne.

Read more about YaraVita ZINTRAC 700