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Table 2 Chemical composition of wood ash

From: Effectiveness of binary combinations of Plectranthus glandulosus leaf powder and Hymenocardia acida wood ash against Sitophilus zeamais (Coleoptera: Curculionidae)

Mineral Content (mg/kg)
Calcium 5800
Magnesium 851
Potassium 997
Sodium 289
Iron 778
Zinc 786
Lead 0.0019
Manganese 0.011
Phosphor 2782