This is the phrase that best shows how the red wheelbarrow is an essential part of life in the farm. In this excerpt, William Carlos Williams tells us that a lot of things depend on the red wheel barrow. This supports the idea that the wheelbarrow is used around the farm more many different jobs, and that this device is vital to the running of the farm.
Williams show that the wheelbarrow is an essential part of life on a farm through the phrase: "so much depends upon" it leads the readers to infere the importance of the wheelbarrow.
