Mam pytanie ile wody dziennie? Sadzonka drugi dzie...

as much as it needs. its not a daily thing. its a when it needs it thing.

1) fully saturate 2) wait for dryback and repeat. It's that simple. you don't choose the volume, but it will be consistent if you water at the same dryback / loss of weight. You learn it retroactively not some volume you whimsically choose. The time between is a reaction and not a choice, also... some leeway in exactly when you do it, but some minimum is required to avoid rootzone risks. If soilless, always get 10% runoff and always provide a well-balanced fertilization each time. These are not things you choose. you give what is required and you react to dryness up top or loss of weight from the pot to trigger the next irrigation. Any inductive approach is not a 'technique.' it's simply wrong. if you don't fully saturate you train superficial roots and elevate risks of nutrient buildup or worse issues in rootzone. dry pockets are the devil. superficial roots suck a big fat D.

Everyone has their own technique. I water thoroughly (close to allowing some water run out of the bottom, or letting a little run out). Then I wait until the soil mostly dries out. I stick my finger (at least one knuckle deep) in the soil and feel the soil, if it is pretty much dry and the leaves have started to droop a bit, I water. It is difficult to prescribe a specific amount of water because the size of the plant (bigger plants use more water), size of the pot (smaller pots dry out faster, type of soil, temperature (higher temperature means faster evaporation), humidity (lower humidity means faster evaporation, etc. all impact water demand. Watering thoroughly encourages roots to grow deep. Allowing the soil to dry a bit prevents roots from rotting and molds developing, as well as allowing the roots to have access to needed oxygen. Hope this helps, happy growing!