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E-book A Brief History of Corn
After corn is harvested, farmers begin to prepare the soil for the next season by mixing in nutrients, such as potassium and phosphorus, with some form of tillage (breaking up soil) to incorporate them. In the spring, farmers will do a light tillage pass to create smooth bedding for planting. When the ground temperature is ready (50°F and expected to rise), farmers will plant the corn seeds. Farmers will then add fertilizer, two inches deep and two inches to the side of the kernels to help the seeds get a healthy start. After the seed is planted, most farmers will spray a pre-emergent herbicide to prohibit weed growth. When seedlings emerge and grow, farmers will inject the soil with some form of nitrogen fertilizer before the V8 (eighth leaf development) stage. This spring fertilizer will allow for the plant to “green-up” and establish good photosynthetic activity through harvest.
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