Question: asking about the fertilizer dose of coconut tree 
(20 years old).
Answer: advised him to apply urea 750 gm, ssp 1200 gm, mop 450 gm, compost 10 kg, borax 50 gm per plant during september/october in a ring prepared at a distance of 1 metre away from the base of the plant. again apply same amount during march/april.