Key Agricultural Terms & Concepts

• Agribusiness – The large-scale system of food production involving farming, processing, distribution, and retail. It includes corporations and commercial farming.

• Agriculture – The practice of cultivating crops and raising livestock for food, fiber, and other products.

• Aquaculture – The farming of aquatic organisms such as fish, shellfish, and seaweed in controlled environments.

• Biotechnology – The use of technology to modify organisms for agriculture, including GMOs and advanced breeding techniques.

• Boserup Hypothesis – The idea that agricultural methods depend on population growth; as populations increase, food production must become more intensive.

• Carl Sauer – A geographer who theorized that plant domestication and agricultural innovation originated in multiple independent hearths.

• Cash Crop – A crop grown primarily for sale rather than for local consumption (e.g., cotton, coffee, sugar).

• Columbian Exchange – The exchange of crops, livestock, and diseases between the Americas, Europe, and Africa following European colonization.

• Commercial Agriculture – Large-scale farming focused on producing crops for sale, often using mechanization and technology.

• Commodity Chain – The sequence of processes involved in the production and distribution of agricultural goods from farms to consumers.

C - D

• Crop Rotation – The practice of alternating different crops in a field to maintain soil fertility and reduce pests.

• Dairying – The commercial farming of milk and dairy products from cows or goats.

• Dispersed Rural Patterns – A settlement pattern where homes and farms are spread out rather than clustered.

• Domestication – The selective breeding of plants and animals to make them more useful to humans.

• Double-Cropping – Growing two crops in the same field within one year to maximize production.

E - G

• Extensive Subsistence Agriculture – Low-input farming using large areas of land with minimal labor, such as pastoral nomadism or shifting cultivation.

• Fallow – Land left unplanted for a period to restore soil fertility.

• Feedlot (Mixed Crop and Livestock Farming) – A system where animals are fed grains and other feeds rather than grazing on pasture.

• GMO (Genetically Modified Organism) – Plants or animals that have been altered using genetic engineering for traits like pest resistance or higher yields.

• Green Revolution (Third Agricultural Revolution) – The spread of high-yield crops, chemical fertilizers, and advanced farming techniques to increase food production, especially in developing countries.

H - M

• Horticulture – The cultivation of fruits, vegetables, and flowers, often on a smaller scale.

• Intensive Subsistence Agriculture – High-labor farming on small plots of land, common in densely populated regions (e.g., rice farming in Asia).

• Intertillage & Ridge Tillage – Methods of planting crops between rows to reduce soil erosion and maximize space.

• Livestock Ranching – The raising of livestock over large areas, typically in semi-arid regions.

• Luxury Crops – High-value crops not essential for survival, such as coffee, tea, and tobacco.

• Market Gardening (Commercial Gardening & Fruit Farming) – The commercial production of fruits, vegetables, and flowers for sale in local and distant markets.

• Mediterranean Agriculture – Specialized farming in Mediterranean-climate regions, including olives, grapes, and citrus fruits.

• Milkshed – The geographic area surrounding a city where dairy products can be supplied without spoiling.

N - S

• Neolithic Revolution (First Agricultural Revolution) – The transition from hunting and gathering to settled farming about 10,000 years ago.

• Nucleated (Clustered) Rural Patterns – A settlement pattern where homes and buildings are clustered together, often around a central area.

• Organic Farming – Agriculture that avoids synthetic chemicals and emphasizes sustainable practices.

• Pastoral Nomadism – A form of subsistence agriculture where people move livestock seasonally in search of grazing land.

• Plantation Agriculture – Large-scale farming operations specializing in one or two cash crops, often in tropical regions.

• Ranching – The practice of raising livestock for meat, wool, or dairy, often over large areas.

• Shifting Cultivation – A farming system where land is cleared (often by burning), farmed for a few years, and then abandoned for regrowth.

• Slash-and-Burn (Swidden Agriculture) – A method of clearing land by cutting and burning vegetation to enrich soil for temporary farming.

• Second Agricultural Revolution – The transition from medieval farming to mechanized agriculture, coinciding with the Industrial Revolution.

• Subsidies – Government financial support to farmers to stabilize food prices and production.

• Subsistence Agriculture – Farming for local consumption rather than for sale, common in developing regions.

• Survey Patterns – Systems used to divide land, such as the township-and-range system in the U.S.

S - V

• Sustainable Agriculture – Farming practices that aim to protect the environment while maintaining productivity.

• Thomas Malthus – An economist who theorized that population growth would outpace food production, leading to scarcity.

• Transhumance – The seasonal migration of livestock between mountains and lowland pastures.

• Truck Farming (Commercial Gardening & Fruit Farming) – Large-scale production of perishable fruits and vegetables, often transported to distant markets.

• Value Added – The increase in product value due to processing or refinement, such as turning milk into cheese.

• Vertical Integration – The control of multiple stages of a product's production and distribution by a single company.

• Von Thünen’s Model – A theory explaining agricultural land use patterns based on distance from a central market.

Origins and Hearths of Agriculture

• Agricultural Hearths – Regions where agriculture first developed and spread from. The main hearths include:

  • Fertile Crescent (Southwest Asia) – Wheat, barley, lentils, olives, cattle, sheep.

  • East Asia – Rice, soybeans, pigs.

  • Sub-Saharan Africa – Sorghum, yams, millet.

  • Mesoamerica (Central America) – Maize (corn), beans, squash, tomatoes, turkeys.

  • Andes (South America) – Potatoes, quinoa, llamas.

  • Southeast Asia – Taro, coconuts, bananas, chickens, pigs.

Agricultural Revolutions

• First Agricultural Revolution (Neolithic Revolution) – The transition from hunting and gathering to settled farming around 10,000 years ago. Led to the domestication of plants and animals and the development of early civilizations.

• Second Agricultural Revolution – Occurred during the 17th–19th centuries alongside the Industrial Revolution. Introduced new farming techniques, crop rotation, mechanization, and improvements in transportation, increasing food production.

• Third Agricultural Revolution (Green Revolution) – Began in the mid-20th century, introducing high-yield crop varieties, chemical fertilizers, pesticides, and advanced technology to increase global food production.

Climate and Terrain in Agriculture

• Climate & Agriculture – Different climates support different types of agriculture. Examples:

  • Tropical Regions – Support shifting cultivation, plantation farming (bananas, coffee, cacao).

  • Arid/Semi-Arid Regions – Support pastoral nomadism, livestock ranching.

  • Temperate Regions – Support mixed crop and livestock farming, dairying, commercial grain farming.

  • Mediterranean Climate – Supports grapes, olives, citrus fruits.

• Terrain & Agriculture – Elevation and landforms affect what can be grown.

  • Flat land – Suited for commercial farming.

  • Mountainous regions – Support terrace farming (e.g., rice in Asia).

  • Floodplains – Fertile for intensive agriculture.

Von Thünen Model

• Von Thünen Model – A theory explaining agricultural land use based on proximity to a central market. Zones include:

  1. Dairy & Market Gardening – Perishable, high-value crops close to cities.

  2. Forest – Wood for fuel/building, historically located near cities.

  3. Field Crops – Grains and other less perishable crops farther from the market.

  4. Livestock Ranching – Animals raised in distant areas due to space needs.

Production-Consumption Linkages & Commodity Chains

• Commodity Chain – The series of steps a product goes through from production to consumption (e.g., coffee: grown → processed → exported → sold).

• Production & Consumption Linkages – Agricultural products are produced in certain regions (e.g., Latin America exports coffee) and consumed in others (e.g., U.S. and Europe import coffee).

Economic Sectors & Agriculture

• Primary Sector – Extraction of raw materials (farming, fishing, mining).

• Secondary Sector – Processing and manufacturing (food production, factories).

• Tertiary Sector – Services related to agriculture (food distribution, retail).

• Quaternary Sector – Agricultural research and development (biotechnology, GMOs).

Commodity Chains, Vertical Integration, & Value-Added

• Commodity Chain – Steps in producing and distributing an agricultural product.

• Vertical Integration – A single company controls multiple steps in the production process (e.g., Tyson controlling chicken farms, processing, and distribution).

• Value-Added Agriculture – Processing raw agricultural products to increase value (e.g., turning milk into cheese).

LDC vs. MDC Agriculture

• Less Developed Countries (LDCs) – More subsistence farming, labor-intensive, small-scale, fewer technological advancements.

• More Developed Countries (MDCs) – More commercial farming, mechanized, large-scale production, heavy use of technology.

Subsistence vs. Commercial Agriculture

• Subsistence Agriculture – Farming for local consumption, using traditional methods, common in LDCs.

• Commercial Agriculture – Farming for profit, using advanced technology and large-scale operations, common in MDCs.

Current Agricultural Trends & Changes

• Farm Size & Methods – Farm sizes are increasing in MDCs due to mechanization and agribusiness, while LDCs often rely on small farms.

• Crop Types – Shifts in production due to climate change, biotechnology, and consumer preferences (e.g., more organic foods).

• Market Changes & Government Policies –

  • Subsidies – Government payments to support farmers and stabilize food production.

  • Trade Agreements – Influence where agricultural products are sold.

• GMOs & Organic Farming –

  • GMOs – Genetically modified organisms used to increase crop yields and resist pests.

  • Organic Farming – Farming without synthetic chemicals, gaining popularity in MDCs.