The U.S. produces more corn than any other crop, with American farmers selling $5.3 billion of it to China last year. But China has spent years courting other producers as it is relying more on Brazil and other Latin American countries. China is also exploring ways to become self-sufficient long-term through embracing new technology and better farming education. WSJ explains why growing its own grains has been such a struggle for China and how it has been trying to wean itself off of its reliance on U.S. c
