The tracing code of the emerald-pedicled watermelon can be scanned by the following steps:

1. Scan the QR code on the emerald-pedicled watermelon.

2. Enter the 18-digit number on the box to verify the inquiry.

3. After submitting the query, the system will return to a result page, showing the detailed information of the emerald-pedicled watermelon, including planting place, picking time, test report, etc.