Researchers perform an experiment on a long-lived perennial shrub in a semiarid site where the soil is low in nitrogen. They fertilize the plants with nitrogen, but the treated plants do not increase their growth compared with control plants. What is a reasonable hypothesis for this result?

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The Answer of Researchers perform an experiment on a long-lived perennial shrub in a semiarid site where the soil is low in nitrogen. They fertilize the plants with nitrogen, but the treated plants do not increase their growth compared with control plants. What is a reasonable hypothesis for this result?

Researchers Perform an Experiment on a Long-Lived Perennial Shrub in a Semiarid