The next paths for nitrates in the soil is : ( B )
II. Denitrification by bacteria
III. Assimilation into plants
Nitrates get into the soil through the decomposition of plant residues and other organic matter. also Nitrates can also be deposited into the soil through Animal dungs , Nitrogen fertilizers and rainfall.
When Nitrates are in the soil they are moved by water and some nitrates in coarse soils are lost through Denitrification ( a process of converting soil nitrates to gaseous nitrogen by anaerobic bacteria). while nitrates that are not lost are assimilated into plants.
Therefore the next paths for nitrates in the soil is Denitrification by bacteria and Assimilation into plants.
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