玉米 - Chlorosis
症状
The youngest leaves show yellow interveinal discoloration as they come out of the whorl. Mainly the basal part of the leaf is uniformly yellowgreen.
原因
Mild Copper deficiency
Copper deficiency in corn is rarely seen. N + S deficiency and cool weather produce symptoms similar to mild copper deficiency.
Leaf streaking can be similar to Fe deficiency.
Copper deficiency 使变得更糟
- Organic soils
- Chalky soils
- Sandy soils
- Reclaimed heathland
- High nitrogen applications
铜很重要
- Improves fertility
- Good cob development
- Improves yield
- Brings harvest date forward
对于铜雅苒推荐的产品是
YaraVita COPTREL 500
Maize: 0.5 l/ha at the 4 to 8 leaf stage. Water rate: 200 l/ha.
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