糖用甜菜 - Deformation
症状
The leaves are cupped upwards and the whole plant has an upright appearance. Younger leaves show chlorotic leaf blades, while the leaf veins and a small margin around them remain green.
原因
Manganese deficiency.
Iron deficiency symptoms start like manganese deficiency as intercostal chlorosis on younger leaves, but only the veins remain green then, and not a margin around them.
A lack of Magnesium and Zinc causes similar symptoms, but occurs on older leaves first.
糖用甜菜 - Deformation
症状
Younger leaves show yellowing with intercostal chlorosis, while the leaf veins and a small margin around them remain green.
The leave margins are cupped upwards and the whole plant has an upright appearance.
原因
Manganese deficiency.
Iron deficiency symptoms start like manganese deficiency as intercostal chlorosis on younger leaves, but only the veins remain green then, and not a margin around them.
A lack of Mg and Zn causes similar symptoms, but occurs on older leaves first.
Manganese deficiency使变得更糟
- Organic soils
- Sandy soils
- High pH
- Cold wet periods
- Fluffy soils
锰很重要
- Promotion of healthy foliage
- Increases beet yields
- Increased sugar levels
对于锰雅苒推荐的产品是
YaraVita MANTRAC PRO
Sugar Beet: 1 l/ha from 4-6 leaf stage. For moderate to severe deficiency, repeat applications at 10-14 day intervals. Water rate: 200 l/ha.
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