As an experienced gardening and landscaping expert, I can provide you with detailed information on when to fertilize corn for optimal growth and yield. Fertilizing corn is crucial, especially on light sandy soils, to ensure that the plants receive the necessary nutrients for healthy development.
The ideal time to start fertilizing corn is when it reaches a height of 12 inches. At this stage, the plants have established a good root system and can efficiently absorb nutrients from the soil. Applying a sidedressing of fertilizer is a recommended practice to provide additional nutrients during the crucial growth phase.
To properly sidedress corn, you will need to apply 8 ounces of 10-10-10 fertilizer to every 10 linear feet of row. This specific fertilizer formulation contains equal parts of nitrogen (N), phosphorus (P), and potassium (K), which are essential macronutrients for plant growth. The nitrogen promotes leaf and stem development, phosphorus aids in root establishment and flower/fruit formation, while potassium supports overall plant health and disease resistance.
When applying the fertilizer, it is beneficial to work it into the soil slightly, preferably with a light cultivation. This helps incorporate the nutrients into the root zone and prevents them from being lost through runoff or volatilization. By lightly mixing the fertilizer into the soil, you ensure the plants can access the nutrients efficiently.
Personal experience has shown that a balanced fertilizer like 10-10-10 works well for corn. However, soil testing is always recommended to determine the specific nutrient needs of your soil. Soil tests provide valuable information about nutrient deficiencies or imbalances, allowing you to tailor your fertilizer application accordingly.
In terms of timing, it is essential to apply the sidedressing fertilizer when the corn is 12 inches tall, but it is also crucial to consider the growth stage of the plants. If the corn plants are already at or approaching the tasseling stage, it may be too late to apply the sidedressing. Therefore, it is best to monitor the growth of your corn and time the application accordingly.
To summarize, fertilizing corn when it reaches a height of 12 inches is crucial for optimal growth. Applying 8 ounces of 10-10-10 fertilizer per 10 linear feet of row and lightly working it into the soil will provide the necessary nutrients. However, it is always recommended to conduct a soil test to determine specific nutrient requirements. Timing is important, and it is best to apply the sidedressing before the corn reaches the tasseling stage.
