Intertillage spreads food production over the farming season
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Transcript of Intertillage spreads food production over the farming season
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• Intertillage spreads food production over the farming season
• It reduces the loss from disease or pests or drought.
• It helps control soil erosion and soil depletion.
• Hill planted crops have deeper root systems and tall stalks while flat earth crops are spreaders.
• No expensive fertilizer, pesticides, herbicides or machines are necessary
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• Agricultural Societies are classified as:– Subsistence or Primitive– Intermediate or Traditional– Developed or Modern
• Colonial Powers-Bad Points– Tried to compel subsistence farmers to modernize by
charging them taxes–Made them devote valuable land to cash crops like
cotton• Colonial Powers-Good Points– Conducted soil surveys– Built irrigation systems– Established lending agencies to loan money to farmers
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Arable Land Percent Arable by Country
Does the percent of land that is arable in a country determine the agricultural output or the calorie
consumption in a country?
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Subsistence Agriculture• Subsistence Agriculture –
Agriculture in which people grow only enough food to survive.
- farmers often hold land in common- some are sedentary, and some practice
shifting cultivation* slash-and-burn
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World Regions of Primarily Subsistence Agriculture
On this map, India and China are not shaded because farmers sell some produce at markets; in equatorial Africa and South America, subsistence farming allows little excess and thus
little produce sold at markets.
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A family in Ecuador tend their potato field high in the mountains
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Above-Herding sheep in the Middle East
Right-Cattle crossing the Niger River
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Sheep slaughter house in a small village in Ecuador-wool, milk & meat
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Left-Haiti, a woman carries bananas to market Right-Iranian Farmers winnowing wheat
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Second Agriculture Revolution
• A series of innovations, improvements, and techniques used to improve the output of agricultural surpluses (started before the industrial revolution). eg. – seed drill– new crops-potatoes & corn– advances in livestock breeding– new soil preparation methods & new fertilizers