Question: asking regarding vitamin deficiency in coconut and fungal infection 
Answer: suggested to spray multiplex coconut special @200gm/plant in ring method and apply fertilizer dose of urea @ 1.5kg,ssp@2.5kg,mop@1.75kg and borax @ 25gm/plant in ring method.the fertilizer should be applied in two splits i.e in april and october
spray bordeaux mixture as remedy against fungal infection