What is the meaning of "e is not subject to the landowner and noon is not subject to the owner" in the yellow calendar?

"e is not unlucky for the landowner" means: don't buy or sell land on e or give it to others, otherwise it will be bad for the landowner.

"Don't build the owner's sign at noon" means: at noon (the day when the ground branch is at noon). There is no roof on this day, that is, there is no Gai Lou on this day. If you build a house, you will sell it for lack of money.