Agronomy Degree Practice Exam

Which of the following does not impact how much fertilizer can safely be applied with the seed?

1. Crop

2. Fertilizer source

3. Soil environment

4. Seed size

The correct answer is: Seed size

The reason that seed size does not impact how much fertilizer can safely be applied with the seed is that nutrient application guidelines are primarily based on the characteristics of the crop, the type of fertilizer being used, and the soil environment. The crop determines nutrient requirements and sensitivity to fertilizer burn, influencing how much fertilizer can be placed with the seed. Different crops have varying tolerances for fertilizer application, which is critical in planning to avoid damaging the seedlings. The fertilizer source matters because it includes considerations like the composition of nutrients, the solubility of the fertilizer, and the potential for salt injury to seedlings. Different fertilizers have different characteristics that affect how they interact with seeds and soil moisture. The soil environment also plays a significant role, as factors such as soil texture, moisture levels, and nutrient availability can influence how much fertilizer can be safely applied. Soil characteristics affect how nutrients are delivered and taken up by plants, as well as how they may impact seed germination and seedling development. Seed size, while a factor in planting depth and spacing, does not have a direct correlation with fertilizer application rates with the seed. In seed and fertilizer management, the more critical factors revolve around the crop type, source of fertilizer, and soil characteristics that ensure healthy plant