Possible Agricultural Themed Science Fair Projects:
What are the pros and cons of genetically modified foods (GMOs)?
Can we feed the world with organically grown foods?
What are the short and long-term effects of commercial fertilizer use on the land?
What sort of diet would be optimal for human health and the environment?
Has the amount of arable land changed over time and how might this help predict future cropland availability?
How might climate change affect crop yields in different parts of the globe?
Home Sweet Biome: How Do Plants Grow in Different Environments?
Growing, Growing, Gone! An Experiment on Nitrogen Fertilizers