What fertiliser and irrigation does cocoa (cacao) need under coconut?

Cocoa under coconut responds well to good organic matter plus a balanced NPK dose applied per plant in split doses through the year, with the exact quantity depending on plant age and soil test, so use the recommended schedule from the cocoa research centre rather than guessing. Mulching with coconut husk and leaf litter helps hold moisture and adds organic matter. Cocoa needs steady moisture and does not tolerate drought, so in the dry months you must irrigate, and drip suits it well in a coconut garden. Avoid waterlogging too, as cocoa dislikes standing water. Since cocoa shares the land with palms, account for the nutrition the palms also need. Get the age wise fertiliser dose and irrigation schedule for your soil from the cocoa research centre or KVK.