Soil pH Test - Page 1

Soil pH Test
Please fill out your email address in the first box and your name, ISA cert. no. & specialty in the second box. Answer the questions below and when you are finished, press submit.

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Question: 1. Soil pH is a measurement of hydrogen atoms in the soil.
True
False

Question: 2. The most accurate method of determining soil pH is by indicators or dyes.
True
False

Question: 3. Soil pH is important because it influences plant growth, bacteria and nutrient availability, toxic elements, and soil structure.
True
False

Question: 4. For most plants, the optimum pH range is from 3.5 to 8.0.
True
False

Question: 5. Sea water is moderately alkaline with a pH of 8.2.
True
False

Question: 6. Limestone will lower the pH of soil while sulfur will raise it.
True
False

Question: 7. As organic matter decomposes, minerals are slowly converted to salts that dissolve in water and become available for plant roots to absorb.
True
False

Question: 8. It is better to plant trees that tolerate the existing pH rather than trying to change the pH after planting.
True
False

Question: 9. Trees that are tolerant of alkalinity can get the needed nutrients through a process that acidifies the soil around their roots.
True
False

Question: 10. When planting trees, if sulfur is applied, it must be in a liquid form.
True
False

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