Answer to Question #42300 in Other Biology for SHIRAZ MIAN

Question #42300
evaluate the effects of tilling on roots for better exchange of gases with the soil air
Expert's answer
Tillage improves the flow of airwithin the soil. The enhanced gas exchange affects the processes that impact the accumulation and loss of soil carbon (C) in agricultural systems. Much of the C is lost as CO2, which is the end product of microbial feedingon soil organic matter. Tillage increases water infiltration and increases the soil porosity, especially large pores, which allow greater movement of soil gases through the soil. Diffusion allows movement of gases into or out of the soil from higher to lower concentrations.

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