To find out when your post office is open: 1  Enter your location in Find a Post Office. 2  A map will appear displaying post offices near you. 3  Select Hours and Services. 4  Select your desired location to view the hours of operation.
Testing Soil pH with a Commercial Test Probe. 1  1. Dig a small hole in the soil. 2  2. Fill the hole with water. 3  3. Insert the test probe into the mud.  4. Hold it there for 60 seconds and take a reading. pH is usually measured on a scale of 1-14, though the tester may not include this entire range.
Soil pH is a measure of soil acidity or alkalinity and can affect availability of essential soil nutrients to your plants. Your soil is acidic if the pH is lower than 7, a neutral soil has a pH of 7. If your soil has a pH above 7 it is basic or alkaline. Follow the test recommendations concerning adjustment of pH. If your soil is alkaline you can add sulfur to lower the pH. You should add lime if your soil is too acidic. Add lime only as recommended by your soil test results. Organic matter in the soil changes continually. How much organic matter you have in your soil depends on rainfall, temperature, aeration, and many other factors. It takes a lot of compost, manure, peat moss or mulch to make small changes in percentage of organic matter in the soil. Typically good soil contains 2 to 10% organic matter.