As corn prices increase, what should a farmer do regarding fertilizer to maximize profit?

To maximize profit as corn prices increase, a farmer should consider using more fertilizer. This is because higher corn prices mean that the potential revenue per bushel is greater, making it more viable to invest in increased production costs, such as fertilizers, which can enhance yield.

Using more fertilizer can boost crop growth, enabling the farmer to take full advantage of the increased market prices by producing a larger quantity of corn to sell. When farmers apply fertilizers appropriately, they can achieve higher yields, thereby increasing their overall return on investment. The relationship between input use, such as fertilizer, and output, like corn yield, is crucial in determining the profitability of farming decisions.

While there may be concerns about over-fertilization or excessive costs, the higher market prices provide an incentive to optimize production. Therefore, the correct choice reflects the approach of leveraging increased corn prices to maximize profits through improved crop yields.