If an individual has a low white blood cell count, his or her body becomes susceptible to serious illnesses and infections. A low white blood cell count can indicate the presence of one or more serious health problems, such as leukemia, hyperthyroidism, aplastic anemia, or an infectious disease.
To test: add 2 teaspoons of garden soil to a jar and a few inches of cabbage water. Stir and wait for 30 minutes. Check the color. If it turns pink, your soil is acidic. If it is blue/green, your soil is alkaline. There are quite a few fruit and vegetable plants that thrive in acidic soil.
Where the differences lie between the different dirt and soils becomes apparent not only visually, but also by testing each soil to see how it is composed of physically and chemically. There are various tests that homeowners can do to check the Ph of their soil, either by sending a sample in the mail to a laboratory, there a online services for this.