questions: asking about the fertilizer dose of coconut plant (age approx 20 yrs) 
 answers: suggested to apply in ring method at a radius of 1 to 1.75 m away from plant,  urea =1.50kg, super= 2.50 kg, potash= 1kg , borax= 25g.  apply in 2 split doses , one at  april and may and other at september / october
= varieties like bengal selected , kamrupa, kahikuchi1,  t*d hybrid( chandrasankar) etc.