Question: query regarding what amount of fertilizer should be use in arecanut.  
Answer: please use the recommended doses of fertilizer- urea 100 gram, super 120 gram potash 110 gram and borax 50 gram per plant in two equal split dose, once in the month of november and another should be apply in the month of march/april in ring method 10-15 cm depth and 1 meter away from the plant. after application please cover the ring with soil and dry leaves.