Last weekend, my friends and I visited the Shengsi Islands off the coast of Shanghai and I decided to gather my soil sample from near the beaches (not sand). The soil was very rocky and looked like it did not have any nutrients. When I came back and tested the soil, the results were the following:
ph – 7.5
Phosphorus – depleted
nitrogen – depleted
Potash – adequate
The test results confirmed my initial guesses. The soil lacked nutrients for proper plant growth. I was surprised because the islands were remote and far from human urban development; frankly, I expected the soil to be more fertile because of the rural aspect of the whole region.