1 / 35

Topic: Challenges to Farmers & The Green Revolution

Explore the challenges faced by farmers globally, including overproduction in commercial farming, limited land management, sustainable farming, and the impact of population growth and international trade on subsistence farmers. Learn about the Third Agricultural Revolution and the rise of agribusiness.

Download Presentation

Topic: Challenges to Farmers & The Green Revolution

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Topic: Challenges to Farmers & The Green Revolution • Aim: For what reasons do farmers globally face challenges?

  2. Challenges for Commercial Farmers Overproduction in Commercial Farming Surplus of food is produced due to efficient agricultural practices, new seeds, fertilizers, pesticides, mechanical equipment, and management Despite increase in food supply, demand has remained constant U.S. government has 3 policies to address excessive production Farmers encouraged to avoid producing crops in excess supply Government pays farmers when certain commodity prices are low Government buys surplus production and sells or donates it to foreign governments

  3. Challenges for Commercial Farmers Sensitive land management Protection of soil through ridge tillage (planting crops on ridge tops) Less investment in tractors and other machinery leads to lower costs Minimal soil disturbance Limited use of chemicals 1. Limited herbicides to control weeds Better integration of crops and livestock Find a balance in distribution of livestock for an area Animals consume crops grown on the farm and are not confined to small pens

  4. Sustainable Farming: • Farming that preserves and enhances environmental quality -typically generate less money but crops are lower in cost • Organic farming is one type • 3 factors: Sensitive land management, limited use of chemicals, and better integration of crops and livestock

  5. Organic farm, Whatcom County, Washington. Crops are planted on ridges close together, with limited use of chemicals and heavy machinery.

  6. Organic Agriculture The production of crops without the use of synthetic or industrially produced pesticides and fertilizers or the raising of livestock without hormones, antibiotics, and synthetic feeds. - sales of organic foods on the rise - grown everywhere - demand in wealthier countries

  7. Challenges for subsistence Farmers: Subsistence Farming and Population Growth Population growth compels subsistence farmers to consider new farming approaches that produce enough food to take care of additional people Increase food supply through intensification of production (leave fallow less years and adopt new farming methods) 5 basic stages Forest fallow Bush fallow Short fallow Annual cropping Multicropping

  8. Challenges for Subsistence Farmers: Subsistence Farming and International Trade To expand production, higher-yield seeds, fertilizer, pesticides, and machinery are needed To generate funds needed to buy these supplies, LDCs must produce something they can sell in MDCs (e.g. fruits and vegetables that would otherwise be out of season) Dilemma: more land devoted to growing export crops, the less land available to growing crops for domestic consumption Some LDCs (especially in Latin America and Asia) choose export crops that can be converted to drugs (e.g. marijuana, opium, coca leaf)

  9. Loss of Productive Farmland: Farmland in danger of being suburbanized as cities expand into neighboring farmlands.

  10. Year Round Rice Production lands that used to be used for family subsistence are now used for commercialized farming with revenues going to the men. women do the work of rice production and see little of the benefit because of the power relations in Gambia

  11. Third Agricultural Revolution Origins in North America (technology) Industrialization of agriculture Mechanization Replacement of human labor with machines Chemical farming Use of synthetic fertilizers, herbicides, pesticides Food manufacturing Addition of economic value through processing, canning, refining, packaging Biotechnology Genetic manipulation Plant breeding

  12. Agribusiness (corporate agriculture): • Large-scale, extensive farms of several thousand acres or several thousand animals controlled by a single regional business – ‘factory farming’ • Large, mutli-national seed, agriculture, and chemical companies own much of this land • Agribuisness has significant political power – receive tax breaks, low-cost loans, and direct government subsides

  13. Where the Factory Meets the Farm: • Poultry/hogs raised indoors with automatic feeding machines • Cattle raised in giant, outdoor feedlots (CAFOS – concentrated animal feeding operation) • Specialized Agriculture • Push towards: free range poultry, grass fed beef, alternative livestock, non GMO foods, and antibiotic and hormone free foods • Wine and Cheese: • Champagne can only be labeled if grapes are grown in Champagne region of France • Parmesan can only grown in Parma, Italy • Roquefort cheese only grown in south of France • Anything can be called Cheddar cheese, but technically it comes from Cheddar, England (Somerset) http://www.youtube.com/watch?v=20Yg-c6iBF8

  14. http://www.youtube.com/watch?v=a7Wh3uq1yTc What do the terms “Natural Flavors” and “Artificial Flavors” mean when they appear on processed, packaged products?

  15. Traditional plant breeding Commercial variety New variety Traditional donor DNA is a strand of genes, much like a strand of pearls. Traditional plant breeding combines many genes at once. (many genes are transferred) = X (crosses) Desired Gene Desired gene Plant biotechnology Commercial variety New variety Desired gene Using plant biotechnology, a single gene may be added to the strand. (only desired gene is transferred) = (transfers) Desired gene • Traditional breeding involves exchanging all genetic material between two related plants. • Genetic engineering usually only involves moving one or two genes and can cross the species barrier.

  16. Protests at WTO Meetings

  17. Biotechnology: Manipulation and management of biological organisms Recombinant DNA techniques Tissue culture (cloning) Cell fusion Embryo transfer Positive: high yielding, disease resistant “super” plants Negative: periphery excluded by distance and cost + concerns about safety

  18. Increase in Genetically Engineered Crops in the U.S. Source: http://www.ers.usda.gov/Data/BiotechCrops/

  19. Four crops accounted for nearly all of the global biotech crop area in 2002 Source: International Service for the Acquisition of Agri-biotech Applications

  20. Four countries accounted for 99 percent* of the global biotech crop area in 2002 *Australia, Bulgaria, Colombia, Germany, Honduras, India, Indonesia, Mexico, Romania, South Africa, Spain and Uruguay accounted for the remaining 1 percent of biotech crop acres. Source: International Service for the Acquisition of Agri-biotech Applications

  21. Some Benefits of Genetically Modified Foods

  22. Some Concerns about Genetically Modified Foods: Possible adverse effects on human health Introduction of new allergens Antibiotic-resistant genes in foods Production of new toxins Concentration of toxic metals Enhancement of toxic fungi Environmental impacts Dangers not yet identified http://www.ucsusa.org/food_and_environment/

  23. Labeling issues: • Main argument against labeling of GM food is that it creates unnecessary fears and that there’s no evidence of harm • However, how do you even know there’s no evidence of harm when it’s not labeled

  24. Crossing life forms? • Suggestion to splice gene from flounder into strawberry to protect it from frost damage • Would you eat this?

  25. The Green Revolution Invention of high-yield grains, especially rice, with goal of reducing hunger. Includes: increased production of rice, new varieties in wheat and corn, reduced famines due to crop failure (now most famines are due to political problems) Impact (in terms of hunger) is greatest where rice is produced

  26. "Miracle" highly-yield seeds have been produced through laboratory experiments at the International Rice Research Institute (IRRI). IRRI researchers conduct cross-pollination experiments in the institute's greenhouse.

  27. Positives of Green Revolution (GMO’s) Increased crop yields Increased food supply Increased resistance to disease and pests New agricultural products – genetically modified cassava and sorghum for African countries Fattening livestock Improved fruit appearance

  28. Worldwide use of genetically altered crop plants

  29. Opposition to Green Revolution Genetically engineered crops are yielding some ethical problems. In the semi-periphery, farmers typically keep seeds from crops so that they can plant the seeds the next year. Companies that produce genetically engineered seeds do not approve of this process; generally, they want farmers to purchase new seeds each year. Many semi-periphery farmers can not afford the new seeds, fertilizers, pesticides or herbicides.

  30. Limitations of Green Revolution: • Limited impact in Africa • Environmental: rice, wheat, corn not ideal in all parts of Africa; desertification and water shortages • Political: Widespread corruption, insecurity, a lack of infrastructure, and a general lack of will on the part of the governments • Environmental problems • Vulnerability to pests • Soil erosion - less organic material in soil – less fertility • Water shortages • Increased exposure to toxic materials • Dependency on chemicals for production – increased groundwater pollution

More Related