Experiment
The Cullars Rotation consists of three sets of 14 soil treatments, with one set of treatments for each of the three crops (cotton, corn, and wheat and soybeans) in the rotation. Each treatment fills a roughly 2000 square foot (184 m²) plot, with a two foot (60 cm) buffer between plots. The 14 soil treatments are:
- Legumes planted, but no nitrogen fertilizer
- No legumes or nitrogen fertilizer
- Nothing added to soil
- Nitrogen fertilizer added, but no winter legumes
- No phosphorus added
- No micronutrients added
- Excess potassium added
- Rock phosphate added
- No potassium added
- Two-thirds of regular amount of potassium added
- No lime added
- No sulfur added
- Complete fertilization with micronutrients
- One-third of regular amount of potassium added
Continuous farming of the plots which have not been given treatments have made certain sections of the Cullars Rotation some of the most nutrient poor soil in the United States.
Read more about this topic: Cullars Rotation
Famous quotes containing the word experiment:
“To me the sole hope of human salvation lies in teaching Man to regard himself as an experiment in the realization of God, to regard his hands as God’s hand, his brain as God’s brain, his purpose as God’s purpose. He must regard God as a helpless Longing, which longed him into existence by its desperate need for an executive organ.”
—George Bernard Shaw (1856–1950)
“I have been trying all my life to like Scotchmen, and am obliged to desist from the experiment in despair.”
—Charles Lamb (1775–1834)
“Everybody’s a mad scientist, and life is their lab. We’re all trying to experiment to find a way to live, to solve problems, to fend off madness and chaos.”
—David Cronenberg (b. 1943)