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.
A pH of 6.0 is adequate for popcorn. Test the soil and apply the amount of lime recommended to achieve this pH. Thorough incorporation and mixing are important. Nutrient requirements for popcorn are estimated to be 85% of those for field corn. Soil P and K should test in the medium to high range (30 to 75 lbs of P and 160 to 240 lbs K per acre). Apply any corrective phosphate or potash recommended on the soil test report.