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.
Data from other scientists and Iowa planting date studies â suggests to plant corn after mid-April when soil temperatures are near 50 degrees Fahrenheit to maximize yield. Seed absorbs about 30 percent of its weight in water; temperature does not affect that process.