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Common Nutrient Deficiencies
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Nutrient |
Soils likely to suffer from deficiency |
Other conditions aggravating deficiency |
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Sands and light soils Low organic matter Reclaimed land |
Recent liming High K or N applications Low P Drought |
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Deficiency is rare, most soils well supplied Can occur if pH is low |
More common in Top Fruit and horticultural crops |
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Chalky sands Acid soil Organic, high pH |
High rainfall Recent liming |
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Chalky sands High organic content Acid sands |
High N or P |
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High pH and chalky soils Marls Acid sands Poorly drained clays |
High P, Cu, Mn, Zn, Ca Low K High pH Wet spring conditions |
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Acid, sandy soils in high rainfall areas Poorly drained Alkaline soils or those overlying chalk |
Compaction, panning, capping Applications of salt High levels of N, K or Ca Restricted root zone |
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Chalky, alkaline soils More than 10% organic Clays with high lime content Poorly drained clays Acid sands Ploughed in pasture |
Recent liming Poor drainage Puffy seed bed High P application Low K levels Poor growing conditions |
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Acid, light soils |
High Mn, S or Cu Low K or N |
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Sandy, shallow soils, low organic matter |
All arable rotations Low rainfall |
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Chalky or alkaline soil Sandy soil Very low organic matter Reclaimed land |
Recent liming High P |
Crop Symptoms of Soil Acidity
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Cereals |
Stunted growth Yellow, upright, stiff leaves Short, thickened roots
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Brassicae |
In-curling of leaf margins Brown spotting and chlorosis |