Across
- 2. an area in a developed country where healthy food is difficult to obtain
- 4. a form of subsistence agriculture in which people shift activity from one field to another; each field is used for crops for a short period of time and then sits for a relatively long time
- 6. the practice of rotating use of different fields from crop to crop each year to avoid exhausting the soil
- 8. Commercial agriculture characterized by the integration of different steps in the food-processing industry, usually through ownership by large corporations
- 12. commercial gardening and fruit farming, named because truck was a Middle English word meaning "bartering" or "exchange of commodities"
- 15. 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 fertilizers and pesticides
- 16. the time when human beings first domesticated plants and animals and no longer relied entirely on hunting an gathering
- 17. a flooded field for growing rice
- 18. rapid diffusion of new agricultural technology
- 19. a form of subsistence agriculture based on herding domesticated animals
- 20. the growing of fruits, vegetables, and flowers
- 21. agriculture undertaken primarily to generate products for sale off the farm
Down
- 1. degradation of land, especially in semiarid areas, primarily because of human actions actions such as excessive crop planting, animal grazing, and tree cutting, also known as semiarid land degradation
- 3. the area surrounding a city from which milk is supplied
- 5. harvesting twice a year from the same field
- 7. a form of subsistence agriculture in which farmers must expend a relatively large amount of effort to produce the maximum feasible yield for a parcel of land
- 9. a system of planting crops on ridge tops in order to reduce farm production costs and promote greater soil conservation
- 10. a large farm in tropical or sub-tropical climates that specializes in the production of one or two crops
- 11. a patch of land cleared for plating through slashing and burning
- 13. agriculture primarily designed to provide food for direct consumption by the farmer and the farmer's family
- 14. the seasonal migration of livestock between mountains and lowland pastures
