Transcription of Understanding soil pH
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Understanding soil pH
To understand soil acidity you need toappreciate that soil is made up of variouscomponents which determine its include mineral particles (sand, silt and clay,which give soil its texture), organic matter (livingand dead), air and water component is where pH is measured,where dissolved chemicals cause the soil to beacidic or acidity and alkalinity are measured in unitsof pH. The pH scale is from 0 (most acid) to 14(most alkaline) and a pH of 7 is soil pHLEAFLET pH of a soil will change over timeinfluenced by factors including parent material,weathering and current agricultural practices. Itwill also fluctuate through the year. soil pH willaffect how plants soil pHSoil pH can be measured in the field using atest kit or by sending a sample to a laboratory formore accurate results. The standard depth ofsampling is 10 cm. soil pH in the field can be measured using asimple test kit based on a colour-card methodavailable from agricultural supply stores calledthe Raupach soil pH kit.
The two main laboratory methods used in Australia use calcium chloride or water. Soil pH in calcium chloride This is the standard method of measuring soil pH
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