| 摘要 |
The combination of a growing medium for a horticultural product, a horticultural product within the growing medium, and a sensor having a body made up of a porous material that changes in physical appearance with a change in the amount of moisture retained by the porous material. In an operative state, the first part of the sensor body resides within the growing medium and a second part of the body remains visible to allow a user to ascertain through the appearance of the second part of the sensor the amount of moisture in the growing medium.
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