At which of the following plant growth stages would you expect the highest demand for soil nutrients?

The mid-vegetative stage is characterized by rapid plant growth and development, during which plants are increasing their leaf area and root system significantly. This phase requires substantial amounts of nutrients, as plants utilize them for processes such as photosynthesis, cell division, and overall biomass accumulation. Specifically, nitrogen, phosphorus, and potassium are crucial during this time because they support various physiological functions, including energy transfer and protein synthesis.

In contrast, during the seedling stage, the plant is still establishing itself, and while it does require nutrients, the demand is not as high as in the mid-vegetative stage. The early flowering stage marks the beginning of reproductive growth, which increases nutrient needs, but it is still not as nutrient-demanding as the mid-vegetative stage. The late fruiting stage, while also nutrient-intensive due to the development of seeds and fruit, typically draws on resources that have been accumulated earlier in the growth cycle rather than representing a peak in nutrient uptake like the mid-vegetative stage does.

Therefore, considering the rapid growth and development occurring during the mid-vegetative stage, it is the period with the highest demand for soil nutrients among the options provided.