Question: asking about the control measure to control fruit drop problem of coconut.
Answer: suggested to apply recommended fertilizer dose like-urea@1.5 kilogram/plant,ssp@2.5 kilogram/plant,mop@1.75 kilogram/plant,borax@25 gram/plant.fertlizer should be applied  with fym in two equal split doses twice in a year to a trench of 30 cm width and 10-15 cm. depth at a radius of 1-1.75 meter away from the main trunk.