Potassium |
Deficiency Symptoms |
Darkening of leaves, reduced growth and vigour. Appearance of white, yellow or orange chlorotic spots in older leaves and distributed irregularly over both under and upper leaf surfaces. Necrotic areas develop along the leaf margins. Poor growth of roots. Die back with tip burn with small leaves. |
Correction Measure |
Foliar spray of KCl 2% at fortnightly intervals. |