Ontario is a province located in east-central Canada, bordered by Quebec to the east, Manitoba to the west, Hudson Bay and James Bay to the north, and the United States to the south. It is the most populous province in Canada, with a population of over 14 million people, and its capital city is Toronto. Here are the top 10 agricultural products of Ontario, Canada, along with their approximate acreage and revenue in 2019:

1. Dairy: Dairy is the top agricultural product in Ontario, with over 3.8 million hectares of farmland used for milk production. In 2019, the farm gate value of Ontario's dairy industry was over $2.8 billion.

2. Grains and Oilseeds: Ontario produces a wide range of grains and oilseeds, including corn, soybeans, wheat, barley, and oats. In 2019, Ontario produced over 8.3 million tonnes of grains and oilseeds with a farm gate value of over $4.7 billion.

3. Cattle and Calves: Ontario's cattle and calf industry is a significant contributor to the province's economy, with over 5.5 million hectares of farmland used for beef production. In 2019, the farm gate value of Ontario's cattle and calf industry was over $2.3 billion.

4. Fruits and Vegetables: Ontario is a major producer of fruits and vegetables, including apples, strawberries, blueberries, grapes, sweet corn, and peppers. In 2019, the farm gate value of Ontario's fruits and vegetables industry was over $1.8 billion.

5. Greenhouse and Nursery: Ontario's greenhouse and nursery industry is a significant contributor to the province's economy, with over 1,600 hectares of farmland used for greenhouse production. In 2019, the farm gate value of Ontario's greenhouse and nursery industry was over $1.4 billion.

6. Hogs and Pigs: Ontario's hog and pig industry is an important contributor to the province's economy, with over 300,000 hectares of farmland used for pork production. In 2019, the farm gate value of Ontario's hog and pig industry was over $1.1 billion.

7. Poultry and Eggs: Ontario's poultry and egg industry is an important contributor to the province's economy, with over 2.3 million hectares of farmland used for poultry and egg production. In 2019, the farm gate value of Ontario's poultry and egg industry was over $1.1 billion.

8. Potatoes: Ontario is a major producer of potatoes, with over 31,000 hectares of farmland used for potato production. In 2019, the farm gate value of Ontario's potato industry was over $215 million.

9. Tobacco: Ontario is a significant producer of tobacco, with over 1,200 hectares of farmland used for tobacco production. In 2019, the farm gate value of Ontario's tobacco industry was over $87 million.

10. Sheep and Lambs: Ontario's sheep and lamb industry is a small but important contributor to the province's economy, with over 80,000 hectares of farmland used for sheep and lamb production. In 2019, the farm gate value of Ontario's sheep and lamb industry was over $60 million.