Question: query related to nutrient management of arecanut. 
Answer: for arecanut: apply the recommended doses of fertilizer- urea 200 gram, super 250 gram, potash-280gram, borax 50 gram and dry cowdung 20 kg per plant in 2 equal split dose once in the month of march/april and other in the month september/october in ring method, 15-20 cm depth and 1.5 meter away from the plant. and also spray growth hormone planofix @ 1ml per 5 liter of water.