According to the United States Department of Agriculture (USDA), the top 10 agricultural products in Nevada in 2020, along with their approximate acreage and revenue, are as follows:

1. Hay - 1.1 million acres - $243 million
2. Cattle and Calves - 470,000 head - $386 million
3. Milk from Cows - $275 million
4. Alfalfa Seed - $22 million
5. Grapes - 3,100 acres - $21 million
6. Onions - 7,700 acres - $19 million
7. Potatoes - 2,300 acres - $15 million
8. Corn for Grain - 19,000 acres - $7 million
9. Wheat for Grain - 17,000 acres - $6 million
10. Rye for Grain - 5,000 acres - $2 million

Note: These figures are approximate and based on data from the USDA. The revenue figures may vary depending on market conditions and other factors.