watch at 14:50. sorry it's not in English. The comentator talking in malayalam and the farmer talking in Tamil.He is an organic farmer- do not use any chemical or fertilizer.
Basically he is telling only 30% of nutrients in the pseudostem is going to the fruit, and 70% staying in the pseudostem. So if you leave the mother plant after harvest it will supply those nutriets to the daughter plant. leave only one sucker. transplant or crush/cut off all other suckers. By doing this method he is able to harvest 2 months early.