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Soil Indexes
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The ADAS soil analysis indexes and lab measurements are set out below. Most other UK laboratories use the same techniques and interpretation scales. | Copper Index | Lab Range [mg/l] | Comment | | Zero | 0 - 1.6 | Copper treatment required - crop loss | | One | 1.7 - 2.5 | Copper treatment desirable - crop response | | Two | 2.5 - 4.0 | Copper Deficiency unlikely | | Three | 4.0 - | Soil well-supplied with copper | Identifying Copper Deficiency Symptoms of Copper deficiency are - Ears having difficulty emerging from the sheaf
- Awns of Barley white & brittle
- Yellowing at the tip of young leaves followed by spiraling
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Technical Support 
