First Agricultural Revolution
The First Agricultural Revolution happened around 11,000 years ago. It involved the domestication of plants and animals which changed the way agriculture worked for the rest of human history. It allowed people to plant crops and herd animals instead of gathering and hunting.
Wheat was on of the first crops to be domesticated
Second Agricultural Revolution
The Second Agricultural Revolution happened in Western Europe during the 1800's, around the same time as the Industrial Revolution. New machines were invented during this time to make farming more efficient such as the plow and seed drill. Different farming methods were introduced during this time like crop rotation, a method where farmers rotate the crops that they plant so that all of the nutrients in the soil don't get used up.
Third Agricultural Revolution
The Third Agricultural Revolution happened during the late 1900's and brought many advancements to farming. This is when modern day farming started to occur. Modern machines like the plow and combine harvester were starting to be used, making it easier to grow lots of food on smaller areas of land. Less people were needed to run the farms because farmers had large machines that reduced the need for workers. This revolution also brought with it a heavy reliance on petroleum, increasing pollution and affecting the environment negatively.
Modern farming creates a lot of pollution from the different machines
Genetically Modified Organisms
Along with the Third Agricultural Revolution, came the use of GMO's. Genetically modified organisms are plants that scientists have changed the DNA of, giving them properties that they would not naturally have. Scientists have been able to make plants that are poisonous to insects and more resistant to disease and weeds. Even though GMO'S have good implementations, there are some cons. Mixing genes from different organisms can cause issues, and some companies don't mark if their products contain GMO'S. The long term effects of GMO's are still not fully understood. Even if the consequences of GMO's are not completely understood, they have still made a lasting impact on how food is grown.
All information is from the Agricultural Powerpoint or the textbooks