What are the precautions for fertilizing mature clivias in autumn?

Mature clivias need a large amount of fertilizer starting in autumn, especially phosphorus and potassium fertilizers. If applying solid fertilizer, first push aside the nutrient soil in the pot and bury the fertilizer in the soil. Be careful not to apply the fertilizer directly onto the fleshy roots, so that the heat generated after the fertilizer ferments does not burn the roots.