A Comprehensive Overview Of Corn Fertilization

A Comprehensive Overview Of Corn Fertilization

Corn is a favorable vegetable and the production need is extremely high. While the environment consists of a large quantity of nitrogen, this form of the element is unavailable to plants. Farmers are responsible for providing their crop with the proper amount of macronutrients, especially nitrogen phosphorus, and potassium. While many consumers do not give a second thought to corn fertilization, it is a very complex process.


Oxygen, carbon, nitrogen, and hydrogen make up plants. While most of these elements are widely available, there is one exception and that is nitrogen. This element is crucial to plant’s DNA and chlorophyll, but it must be in a fixed form, in order for the plants to receive any nutritional value from it. Phosphate is also vital for DNA production, so as you can see there is a scientific knowledge required for producing crops.

Application Process

The proper amount of fertilizer applied to the soil will vary according to the results of the soil sample testing results. Many local farmers will opt to utilize 16-16-18 fertilizer for their corn crop, because it contains a higher quantity of phosphorus and nitrogen. The 15-15-15 fertilizer will not suffice your crop, even though it is suitable for grass, because it does not contain the proper amount of elements.

Sweet Corn

Sweet corn requires a large quantity of nitrogen fertilizer, because they voraciously feed on the element. If you wish to yield a large, healthy crop, then you will need to take the time to do your research on the corn fertilization technique, even more so, if you are a newbie farmer.

Fertilizing Soil

The soil must be fertilized, before the corn is planted. While the rule of thumb is 1 pound of fertilizer per 50 square feet of space, this may vary according to the nitrogen level in the soil. The fertilizer must be applied to the top layer of soil and thoroughly mixed into the top ½’ of the soil. Once this process is completed appropriately, you will then begin to plant and irrigate the plants according to the traditional farming practices.

Nitrogen Fertilizers

Ammonia or NH3 is utilized to manufacture the nitrogen fertilizer. Once the corn plants reach 6” in height, you will need to repeat the fertilization process, but this time you should utilize a 46-0-0 fertilizer. This form of fertilizer contains only the nitrogen element and it should not be applied directly to the plant or roots. Pour the fertilizer about 6” from the plant and then irrigate thoroughly, so that the nitrogen will gradually reach the plants. It is important to note that overdoing it with the fertilizer can potentially put your crop at risk of deterioration, which would be devastating loss.

Last Step

The fertilization process must be completed in three different steps, with the last step being, when the corn ears begin to produce silk. You should utilize the all-nitrogen fertilizer for this process, as well, but only ¼ pound per 100 square feet of area is required.


If you hope to produce a healthy, high yield of corn, you will need to follow these techniques to a tee. Corn fertilization does require a bit of work, but if done properly, the rewards will be in abundance.

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