Can any body suggest how to calculate organic matter decomposition rate of soil or compost? is there any formula? please suggest some relevant references.
@ Kasturi, the equation for organic matter decomposition rate was given by Olson (1963) . The formula is often used in this form
ln(Mt / M0) = -k t
M0 is the initial mass of organic matter or carbon, Mt is the mass of organic matter or carbon, t, is time (e.g. year or day) and kS is the constant for decay rate.
In general, from the titre value you can calculate decomposition rate as mg of carbon di-oxide per day for a weight of decomposed material placed initially.