Freebase(0.00 / 0 votes)Rate this definition: Chemical property. A chemical property is any of a material's properties that becomes evident during a chemical reaction; that is, any quality that can be established only by changing a substance's chemical identity.
Ground Temperature. The best time to plant your corn seeds is when the soil temperature reaches an average of 50 degrees Fahrenheit. You can determine the average ground temperature in your garden using a soil thermometer -- available at most garden stores.
It may take several days of air temperatures in the 60 to 90 F range to warm soil to 60 F in the spring. If your corn is slow to germinate, you may have planted it before the soil was warm enough. At a soil temperature of 55 F, corn may take up to 22 days to germinate. Moisture In order to sprout quickly, corn seed needs adequate moisture in the soil, which kicks off the germination process.