Which of the following is NOT a reason to calibrate a spreader?

Calibrating a spreader is an essential practice for ensuring accurate and effective application of fertilizers, and it serves several important purposes. One key reason for calibration is to save on fertilizer costs by ensuring that the correct amount of fertilizer is applied. This helps to avoid both under-application, which can lead to insufficient nutrient availability for plants, and over-application, which can waste fertilizer and increase costs.

Calibration also plays a critical role in ensuring effective nutrient application, as it helps to deliver fertilizers uniformly across the treatment area. This means the nutrients will be available to plants in optimal amounts, which promotes healthier growth and development.

Moreover, preventing environmental contamination is another vital reason to calibrate a spreader. Applying too much fertilizer can lead to nutrient runoff into nearby water bodies, causing contamination and promoting harmful algal blooms.

While improving soil composition is an important aspect of soil health, it is not a direct reason for calibrating a spreader. Soil composition is affected by a variety of factors, including organic matter content, soil pH, and the balance of nutrients already present in the soil. Calibration itself focuses on the application process rather than directly altering or improving the existing composition of the soil.