Question: asking about control of immature fruit drop in coconut at the age of five years
Answer: advised to apply recommended fertilizer dose like-urea @ 1.5 kilo,ssp @ 2.5 kilo,mop @ 1.75 kilo,borax @ 50 gram,compost @ 15 kilogram.fertilizer should be applied in two equal halves twice in a year to a trench of 10-12 centimeter depth,30 centimeter breadth with a radius of 1-1.75 meter  away from the main trunk.