Overview and application of the Mitscherlich equation and its extensions to estimate the soil nitrogen pool fraction associated with crop yield and nitrous oxide emission

Natural levels of soil nutrients are spatio-temporally variable and insufficient for agricultural purposes. Artificial fertilizers applied to achieve greater crop growth rates yield. Mitscherlich's equation Boule's fertilizer units described illustrated in relation yield then estimate the nitrogen (N)-pool fraction that contributes a component greenhouse gas (GHG) emission, specifically nitrous oxide (N2O) flux. Mitscherlich (1909) proposed diminishing returns model extract information about N status production responses. was generalized by Baule (1918) modified Bray (1945) account nutrient contributions multiple fertilizers. These models examined this chapter. Their application results extraction further on variability N2O emission across various geo-positions (specific global locations). It is concluded useful tools investigate soil-fertilizer interaction compare fertility GHG emission.