the soil
Is bare now, nor can foot feel, being shod.
We need to get the line correct. And we need to go back just a little bit to get the tone. The short answer is that the first stanza of the poem ends with this line. It is a particularly difficult and subtle poem to read because most of the meaning is hidden from us. The line that you asking about means that we are so tamed by civilization that we cannot walk in nature without shoes. We cannot feel the good earth because our feet are too frail to walk on ground.
But to get the full impact you have to go back to the end of the previous line and get it's meaning as well. "The soil is bare" means that nothing will grow on soil that has been stripped clean and all its nutrients robbed by man's interference and stupidity, and his inability to understand what he is doing to the land.
It is as though he (man) is feeding the soil with nothing but ice cream, robbing it of its ability to regenerate itself. As a result, the soil is now barren weakened by inattentiveness.
And we cannot walk in her without something between us and the soil.
It's a sad and angry poem.
