Quote from Daal:
So far the only things that I found were a commodity ETF(dbc) and commodity mutual funds but they have a bunch of other stuff like gold, oil,etc
is there companies who will benefit a lot from an ag boom?

Quote from HOBO:
With this investment
http://www.potashcorp.com/investor_relations/why_invest/our_segments/potash/overview/
you donât even have to worry which crops will go up and which down.