[CR]Fertilizer Bomb & Fertilizer Improvements

-Added bags of dry commercial fertilizer.
     These are rather big and heavy, but more common than liquid fertilizer (farms, hardware & garden store).
-Added fertilizer bombs. Recipe uses a source of fertilizer with either sugar or gasoline.
     These are also larger and heavier than most explosives and must be lit.
-Added menu to allow choosing of which fertilizer to use when fertilizing a plot

I would be interested in thoughts on balance, changes to description etc. For example, finding one gallon jug of liquid fertilizer in a store has enough portions to fertilize 60 plots. I did not edit this, but currently I have a much larger and heavier bag of pellet fertilizer having only enough for 20 plots. Nerf it or buff the pellet form?
This should probably require gasoline or maybe lamp oil, but not allow sugar as an option here, since I'm guessing this is supposed to be a fairly simple oxidizer-boosted tertiary explosive like the stereotypical 'fertilizer IED', and thus it needs a fairly potent (read as: more potential energy than a bag of sugar) fuel source to detonate.