This is wondering me as how the process of soil sampling for both NH4 and NO3 ? what was the reason to not analyze fresh soil samples for both parameters ? the dry soil sample change the state of both forms of N during storage.
Reviewer ask me this question?
Because ammonia nitrogen is retained by the absorbent capacity of the soil. Later, due to bacterial nitrification, it can be converted to nitric nitrogen, which is the way in which the soil retains more nitrogen. Having a hydrated sample could alter the nitrogen concentration due to the presence of dissolved ammonia nitrogen, which may be present in the water.
Greetings.
Asif Ali Khan In fact, by drying the soil, we intend to obtain the concentration of ammonia nitrogen present in the solid matrix. Avoiding quantifying that found in the water.
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