Question: asking about the fertilizer dose of coconut tree 
(more than 10 years old)
Answer: advised him to apply fertilizers like urea 1.5 kg, ssp 2.5 kg, mop 1.70 kg, borax 50gm alongwith compost or cowdung 10-15 kg per plant.divide the amount into two parts and apply during march/april and october/november in ring method.