[Balding_Eagle]

Roundup Ready means that the crops are Roundup tolerant. The ground is sprayed with Roundup before emergence, not the crops.

[Semper911]

I hate to use Wikipedia as a source, but here is a snip that is fully footnoted:

Monsanto also produces seeds which grow into plants genetically engineered to be tolerant to glyphosate, which are known as Roundup Ready crops. The genes contained in these seeds are patented. Such crops allow farmers to use glyphosate as a post-emergence herbicide against most broadleaf and cereal weeds. Soy was the first Roundup Ready crop, and was produced at Monsanto's Agracetus Campus located in Middleton, Wisconsin.

(Post emergence herbicide = sprayed on leafy plant)

Read all about it here: Roundup Herbicide

Really. They spray the crops. Often.

[Augie]

“Roundup Ready means that the crops are Roundup tolerant. The ground is sprayed with Roundup before emergence, not the crops.”

Wrong.

Roundup is a post-emerge herbicide.

The poison is sprayed on the crop and the weeds.