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:
“I have been trying all my life to like Scotchmen, and am obliged to desist from the experiment in despair.”
—Charles Lamb (1775–1834)
“The man who invented Eskimo Pie made a million dollars, so one is told, but E.E. Cummings, whose verse has been appearing off and on for three years now, and whose experiments should not be more appalling to those interested in poetry than the experiment of surrounding ice-cream with a layer of chocolate was to those interested in soda fountains, has hardly made a dent in the doughy minds of our so-called poetry lovers.”
—John Dos Passos (1896–1970)
“That which we call sin in others, is experiment for us.”
—Ralph Waldo Emerson (1803–1882)