Two common methods for analysis of soil organic matter are the Walkley-Black acid digestion method and the weight loss on ignition method. The Walkley-Black method, used since the 1930’s, uses chromic acid to measure the oxidizable organic carbon in a soil. Smartapp organic matter in soil test app is built to follow the Walkley-Black method test methodology and reporting of test results . Flexibility is provided to specify permissible limits (to suit standards applicable) against which test results can be compared with.

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Last Updated: Mar-01-21