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More Sustainable Food Production

More Sustainable Food Production. LT 7D : Describe solutions to a more sustainable food production . Two main approaches: Control Prices Legally mandated upper limit on prices in order to keep food prices artificially low. Provide Subsidies

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More Sustainable Food Production

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  1. More Sustainable Food Production LT 7D: Describe solutions to a more sustainable food production

  2. Two main approaches: • Control Prices • Legally mandated upper limit on prices in order to keep food prices artificially low. • Provide Subsidies • Give farmers price supports, tax breaks and other financial support to encourage an increase in food production How do governments influence food production?

  3. What do you think are some effects of providing subsidies to farmers? Think Box

  4. UN World Food Program • 2008 • Announced a new system of buying food from small farmers • Aid programs • Support reduction of population growth by family planning, education and jobs • Reduce poverty • Provide small loans to buy land and grow their own food How do non- governmental organizations influence food production?

  5. Which of the agencies do you think promotes a more sustainable way of producing food, the government or the non-governmental agencies? Explain. Think Box

  6. Soil conservation: variety of methods to reduce topsoil erosion and restore soil fertility • Terracing • Contour planting • Strip cropping with cover crop • Alley cropping, agroforestry • Windbreaks or shelterbelts • Conservation-tillage farming More Sustainable Food Prodcution

  7. Soil Conservation: Terracing Fig. 12-26, p. 305

  8. Soil Conservation: Contour Planting and Strip Cropping Fig. 12-27, p. 305

  9. Soil Conservation: Alley Cropping Fig. 12-28, p. 305

  10. Soil Conservation: Windbreaks Fig. 12-29, p. 306

  11. Soil Conservation: Conservation-Tillage

  12. 1/3 of the countries original topsoil is gone and much of the rest is degraded • Dust Bowl: topsoil in several dry and windy mid-western states was lost because of poor cultivation practices • 1935: Soil Erosion Act • More soil conservation needed History of Soil Erosion in the US

  13. Organic fertilizer • Animal manure • Green manure • Compost • Manufactured inorganic fertilizer • Nitrogen, phosphorus, calcium • Crop rotation Restore Soil Fertility

  14. Soil Salinization • Preventatives: Reduce irrigation and switch to salt-tolerant crops • Clean-up: flush soil, stop growing crops for 2-5 years, install underground drainage systems • Desertificaton • Preventatives: population growth, overgrazing, deforestation, destructive forms of planting, irrigation and mining. Reduce Soil Salinization and Desertification

  15. Sustainable agriculture uses fewer inputs, creates less pollution, and contributes less to global warming • Organic farming More Sustainable Food Production

  16. How do you think organic farming is a more sustainable way of producing food? Think Box

  17. Strategies for more sustainable agriculture • Research on organic agriculture with human nutrition in mind • Show farmers how organic agricultural systems work • Subsidies and foreign aid • Training programs; college curricula • Encourage hydroponics • Greater use of alternative energy More sustainable food production

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