The photo shows a vineyard in New Zealand, an example of poor soil.
"Poor soil" refers to soil that is well-drained and has few nutrients in the soil, and is generally considered to be suitable for growing grapes.
When there is plenty of nutrients and moisture in the soil, grape vines use the nutrients to grow the vine and leaves, which makes it difficult for nutrients to reach the fruit.
On the other hand, trees that feel stressed in poor soil go into a state of starvation. By doing so, they absorb many of the nutrients from the ground and transport them to their fruit. In addition, their roots grow long underground, allowing them to absorb various nutrients deep underground.
