Sounds very similar to Nokia Life Tools which launched in India back in 2009 - http://en.wikipedia.org/wiki/Nokia_Life_Tools
"The agricultural part of the service consists of localized information including weather conditions, advice about crop cycles, general tips and techniques, as well as market prices for crops. Farmers in the pilot scheme said getting daily prices on their phones reduced their dependency on agents for basic information, enabling them to negotiate with greater confidence."