Deficiency Symptoms ABC

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Phosphorus deficiency (P)

Shades of red or purple at the base of plants together with stunting are classic signs of P deficiency. Symptoms tend to show very early on and plants with poor root structure resulting from min-till techniques or soil consolidation are affected most severely.

Treatment: If detected early enough, water-soluble P fertiliser can be applied post-emergence although maintenance of adequate soil reserves is more satisfactory.

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