Soil pH Meter Green

Make sure the soil is moist and the probe is clean Push the probe into the moist soil to about 12cm deep and wait 60 seconds to take a reading. Take two to three readings in different places A reading between 7 is pH neutral, between 3 and 7 is acid. To make the soil more alkaline, for every 1 pH add approx 300 grammes per square metre of lime A reading between 7 and 10 is alkaline Soil pH Meter