Mango Tree - natural fertilizer

Which is the best natural fertilizer to be used for mango tree?

Mango responds to Panchagavya very well.  A dose when it starts flowering or just before it. and second dose when you have baby mangoes.

There is a natural growth promoter which gives good color and taste, you can spray it just a week before harvesting. formula is

200g Jeshtamadhu Powder(Liquorice or licorice /Glycyrrhiza glabra/)
200g Black gingelly(black sesame)
500g Jaggery

Crush coarse black sesame seeds; mix all ingredients with 5L water. Brew to half. Keep it closed in cool dry place for 24 hrs. Mix it with 200L. This is for 1 acre land.