First I’d like to thank you for helping people understand farming. Farmers really do need all the help we can give them. Food is just too cheap — farmers are spending more each year and making less margin.
That said, converting to organic corn, for example, only takes 3 years, not 7, and it will pay for itself over 3 years. The first 2 years deliver lower margins than conventional corn (same sales price, but 10–15% less yield), but the sale price of year 3 makes the first three years more profitable than conventional.
Check out http://sustainablefarmpartners.com/ for one example of a business that is investing in organic crops.