ApHg Agriculture

2. Agriculture designed primarily to provide food for direct consumption by the farmer and the farmer's family.
4. Harvesting twice a year from the same field.
7. A path of land cleared for planting through slashing and burning.
10. The seasonal migration of livestock between mountains and lowland pastures.
12. A form of subsistence agriculture in which people shift activity from one field to another; each field is used for crops for relatively few years and left fallow for a long period.
13. The practice of rotating use of different fields from crop to crop each year to avoid exhausting the soil.
14. The area surrounding a city from which milk is supplied.
16. Rapid diffusion of new agricultural technology, especially new high-yield seeds and fertilizers.
17. Commercial gardening and fruit farming, so named because truck was a Middle English word meaning "barter" or "exchange of commodities."
19. A type of agriculture in which the farmers maximize food production on relatively small fields.
20. The growing of fruits, vegetables, and flowers.
21. A form of subsistence agriculture based on herding domesticated animals.

1. The time when human beings first domesticated plants and animals and no longer relied entirely on hunting and gathering.
3. Agriculture undertaken primarily to generate products for sale off the farm.
5. A large farm in tropical and subtropical climates that specializes in the production of one or two crops for sale.
6. A flooded field for growing rice.
8. A large-scale farming enterprise.
9. An area in a developed country where healthy food is difficult to obtain.
11. Farming methods that preserve long-term productivity of land and minimize pollution, typically by rotating soil-restoring crops with cash crops and reducing inputs of fertilizer and pesticides.
15. The process by which fertile land becomes desert, typically as a result of drought, deforestation, or inappropriate agriculture.
18. A system of planting crops on ridge tops in order to reduce farm production costs and promote greater soil conservation.