Dear sunildas,
1. falling of nut due to soil/ water/ nutrient/ animal damage,pl apply decompost cowdun 50kg+ 5kg of neemcake apply 3 feet way from the trunk,
Apply with Micro nutrient mixture 1kg/tree,( available in all ferlizer shop),irrigation is more essential for coconut maintainance.
with regards,
M.sivakumar,
Horticulturist,
SAroni agri farm clinic,
Tirunelveli,
9842157331.