Magic: The Gathering

Hi! I'm tweaking my burn deck and had a question about the wording/rules around Nahiri's Lithoforming.

The text states:

Sacrifice X lands. For each land sacrificed this way, draw a card. You may play X additional lands this turn. Lands you control enter the battlefield tapped this turn.

My question was whether the additional lands have to be played while the spell is resolving or at any time during the rest of the turn? I'm guessing the latter because otherwise it would say "you may play X additional lands", but just wanted to check.

Looking to combine this with acidic soil and valakut for some fun where I don't take much/any damage.