I have no idea how to make this work so im looking for a little guidance

Google

You would need a hydroponic greenhouse and a way to measure all the controllable factors. You would need something to grow the tomatoes in.

You might also need some tomato seeds.

The tomato simulator. (http://www.oardc.ohio-state.edu/hydroponics/drake/index.php?option=wrapper&Itemid=99)

Bump

http://www.icmag.com/ic/showthread.php?t=13327
http://www.icmag.com/ic/showthread.php?t=26343

2 ideas if you still need help