Symptômes
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.
Raisons
Zinc deficiency
Symptômes
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.
Raisons
Zinc deficiency
Symptômes
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.
Raisons
Zinc deficiency
Symptômes
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.
Raisons
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.
Symptômes
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.
Raisons
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.
Symptômes
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.
Raisons
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: 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
En savoir plus YaraVita CROP BOOSTMaize: 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.
En savoir plus YaraVita MANCOZINMaize: 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.
En savoir plus YaraVita ZINTRAC 700