Well, Russia is a country with above average acceptance of Bitcoin. You can bargain with your suppliers (for fertilizer and pesticide) and request them to accept Bitcoin as a mode of payment. Apart from Bitcoin, you can implement the Blockchain technology to track the incoming supplies and the delivery of farm products to the whole sale dealers. I think already we have several Blockchain applications for that purpose.
This is the most ideal thing to do with someone like OP wants to use cryptocurrency or Bitcoin to run an agricultural business. One of the mainstream application used to run a business is the
smart contracts. This way the OP can manage his agricultural supplies with ease, while accepting Bitcoin and other altcoins.
I can't think of any business that connects Bitcoin and agriculture rather than what was mentioned above.