Question: asking about the fertilizer dose for arecanut tree 
(15-20 years old)
Answer: advised him to apply urea 113 gm, ssp 125 gm, mop 138 gm, borax 50 gm, compost 10 kg per plant during this month  in ring. prepare the ring at a distance of 50 cm away from the plant.again apply same amount in october/november in ring.