Presentation on theme: "When tillage begins, other arts follow"— Presentation transcript:
1 When tillage begins, other arts follow When tillage begins, other arts follow. The farmers, therefore, are the founders of human civilization. Daniel Webster, Remarks on Agriculture
2 How long has man been farming? Our planet is around 5 billion years oldMan (Homo sapiens) have been around for , 000 yearsMan has been farming for around 10, 000 yearsAgriculture is the world's largest economic sector.On a worldwide basis, more people are involved in agriculture than in all the other occupations combined.
3 What is sustainable agriculture? An integrated system of plant and animal production practices that over the long term:satisfy human food and fiber needsenhance environmental quality and the natural resource base upon which the agricultural economy dependsmake the most efficient use of nonrenewable resources and on-farm resources and integrate, where appropriate, natural biological cycles and controlssustain the economic viability of farm operationsenhance the quality of life for farmers and society as a whole.
4 Farming 101 The basic processes of farming include: preparing the land FertilizationIrrigationweed and pest control.
5 Preparing the land Machinery powered by fossil fuels prepare the soil Plowing was done by the farmer or draft animals
6 FertilizingFertilizer was animal manureSynthetic Fertilizer
7 Irrigation Irrigation involved water flowing through ditches Modern overhead irrigation
8 Removing weedsWeeds were removed by handSynthetic herbicides
9 Controlling pests Biological control Pesticide sprayer
10 Harvest Harvesting corn by hand Combining corn Precision agriculture -
11 Conventional Corn in Iowa May 16, ,000 treated corn seeds/acre plantedMay 17, 2007 fertilized with145 lbs Nitrogen/acre along with 2.25 oz/acre of Balance Pro™ herbicide.June 25 sprayed with 0.66 oz/acre of Accent, (herbicide) 1 pt/acre of Buctril, (herbicide) 4 oz/acre of NIS, and 1.5 lbs/acre of AMS (herbicide).October 29th harvest (188bu/acre)
12 Iowa Agriculture Over 90% of Iowa’s land is used for agriculture Iowa ranks 1st in the U.S. for corn and soybean productionThere are 13.9 million acres of corn in Iowa with a value of $9.47 billionIowa is home to 19.2 million hogsIowa chickens produced 13.9 billion eggs in 2007
13 What is all this corn for? Animal feedEthanolOf items in a grocery store, how many contain corn?2 500Corn syrup, cornmeal, cornstarch, sorbitol, medicines, cosmetics, xanthan gum
14 The changing nature of farming There are 5 million fewer farms in the U.S. than there were in the 1930’sBetween 1974 and 2002, the number of corporate-owned U.S. farms increased by more than 46 percent.The U.S. has the cheapest food in the worldAt what cost?