I've grown this mango tree from seed since 1997 but still can't bear fruits.How to bring about the successful

Question

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I've applied fertilisers(NPK + bone meal) and also those available on supermarket shelves to encourage fruit trees to fruit but to no avail.Somebody suggest chopping the trunk several times and even hammering a big nail through the trunk may induce fruiting.I guess these are old wives' tail and may hurt this mango trees.The fruits I bought while on a trip to Thailand and was impressed with its fruits which are about the size of a papaya

Answer 1

Just wait. Or better yet keep on planting trees. You'll help the environment and you'll have trees for you and the next generation in a few years. Seed trees grow bigger and stronger and better than trees propagated by grafting, marcotting (not sure of spelling) and cuttings.

Answer 2

Because you have a male plant.

Answer 3

go to to grocery store and buy mangos and tie them to the tree.