Is "Ji+"the first of "Six Valleys"?

Saint Amethyst wrote: "Rice, sorghum, rice, wheat, millet and millet are six kinds of cereals that people eat. It shows that:

1, rice is listed as the first of the six cereals, which shows that its value and position in all grain varieties are very important. Cooking without rice highly summarizes the rich connotation and scientific orientation of traditional rice food culture in China.

2. Revealed the origin and development of rice culture.