Follow the below links for summary, full text, and other information on S510.

http://www.govtrack.us/congress/bill.xpd?bill=s111-510

If you read the text/summary of the bill, you will find an exclusion for farms. Which means, in addition to common sense, you can grow your own backyard vegetable patch. If you're processing or selling the food, then S510 applies to you.

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Pet peeve, and this applies to more then just this forum, is that nobody bothers to do their own research. It took me less then a minute to find information on the bill. Everybody relies on some left/right wing hired gun talking head for their information. It doesn't seem to matter if it's TV, daytime radio talk, or the web. No theory to ludicrous, no distortion of fact to flagrant.

We live in the information age with access to a stunning amount of material. Running down the facts is no longer a couple days at the library, it's a matter of a minutes with Google.
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Hope for the best and prepare for the worst.

The object in life is not to be on the side of the majority, but to escape finding oneself in the ranks of the insane