agricultural geography key issue #4: why do farmers face economic difficulties?
TRANSCRIPT
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Agricultural GeographyKey Issue #4: Why Do Farmers Face Economic Difficulties?
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Challenges for Commercial
Farmers
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Overproduction in Commercial Farming
They are capable of producing more food than is demanded by consumers
Food supply has risen, but demand remains constant
The U.S. government’s three solutions:1) Farmers should avoid producing crops that
are abundant2) The government pays farmers when prices
are low3) The government buys surplus productionThe U.S. spent $25 billion in 2005 on subsidies
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Sustainable Agriculture This practice preserves and enhances
environmental quality Generates less revenue, but the cost is
less
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Three Principal Practices of Sustainable Agriculture
1. Sensitive Land Management – the soil is protected
• Ridge tillage – planting crops on ridge tops; the crops are planted in the same ridges year after year
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Three Principal Practices of Sustainable Agriculture2. Limited Use of
Chemicals – very few herbicides and pesticides are used
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Three Principal Practices of Sustainable Agriculture
3. Integrated Crop and Livestock – both are done on the local farm level; animals consume crops grown on the farm and are not confined to small pens
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Challenges for Subsistence
Farmers
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Choosing Crops Because of rapid population growth in PINGs, the
need for food has grown
Because of international trade, farmers who wish to advance must grow crops for trade rather than consumption
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Subsistence Farming and Population Growth Ester Boserup – says that subsistence
farmers increase the supply of food through intensification of production Land is left fallow for shorter periods New farming methods More weeding, manure, water, terraces,
and irrigation
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Subsistence Farming and International Trade To expand, subsistence farmers need:
higher yield seeds, pesticides, machinery
To buy supplies, PINGs must sell to PEDs Dilemma for PINGs: more land devoted
to export crops, less is devoted to consumption
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The Dilemma cont… Export crops that are chosen = drugs 60% of the world’s opium – the Golden
Triangle of SE Asia (Myanmar, Laos, Thailand, Vietnam)
The rest is grown in Afghanistan and Pakistan
Bolivia, Colombia, and Peru – produce the coca leaf
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Alternative Solutions to Increase Food Supply
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Expanding Agricultural Land Historically, food production increased
as the amount of farm land increased Desertification Too much water Urbanization
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Through Higher Productivity The same amount of land produces
more The Green Revolution – improved
agricultural techniques of the 1970’s and 1980’s
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Two Main Practices of the Green Revolution
1. The introduction of new higher-yield seeds – in the 1950’s scientists developed the “miracle wheat seed”
• 1960’s – rice• More recently - corn
2. The expanded use of fertilizers – nitrogen, phosphorus, and potassium
• Farmers need machinery and irrigation to get the most out of the seeds and fertilizer
• PINGs can’t afford all of this – governments in PEDs subsidize some of the improvements
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Continuing the Green Revolution
Scientists have made higher yield hybrids that are adapted to environmental conditions in various regions
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Identifying New Food Sources The sea provides only a small
percentage of the world food supply Some species of fish have been
harvested too quickly
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Higher Protein Cereals People in PEDs get protein from meat People in PINGs rely on wheat, corn, and
rice Scientists are experimenting with
hybrids of cereals that have a higher protein content
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Improve Palatability of Rarely Consumed Foods Soybeans – mostly used for animal food
Tofu and sprouts are examples of soybean products
Krill – could be an important resource from the ocean..…yum!
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Increasing Exports from Other Countries
Export more food from countries that produce surpluses
Three top export grains: wheat, maize, and rice 60 million Indians were fed by U.S. grains in 1966
and 1967 when monsoons failed The U.S. is the largest grain exporter; though it has
declined over the last 25 years
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Africa’s Food Supply CrisisThe situation: Africa is
losing the race to keep food production above population growth
Production of the three main grains tripled
Population growth increased six-fold
40 million Africans face famine
The Crisis is especially severe in the Horn of Africa (Ethiopia, Somalia, Sudan)
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Causes of Mortality of Children Under 5 Years; Ethiopia, 2000
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How Africa Got to This Point Traditionally, Africa has
supported limited agriculture With population growth, herd
size increased to a level that the land could not support
Animals died of hunger Farmers exhausted the land Soil Erosion Droughts in the 1970’s, 80’s,
and 90’s
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Government Response Governments aggravate the problem They keep agricultural prices low for
urban residents This leaves little profit or motivation for
more productivity on the farms