questions: asking about the nutrient management and planting distance in areca nut 
 answers: suggestion=
apply npk 19 all  @ 10 gm / l of water, 2 spray at 15 days interval.
apply bavistin or captaf @ 2gm /l of water, spray it to the surface of the field for soil drenching ( soil drenching for further transplantation to the main field).
planting distance of arecanut -2.75m* 2.75m.
pit size- 60cm*60cm*60cm