The Guardian has an excellent report on the state of water in China when it comes to wheat production.
"Local newspapers have been filled with stories of the drought's impact on the "wheat basket" provinces of Henan, Anhui and Hunan. About 2.6 million people and 2.8 million livestock are affected. To induce precipitation, the army and metereological officials have fired cloud-seeding chemicals into the sky."
Get a better understanding of the depth and extent of the drought, and what it means for food production.