The Assimilation of Nitrogen by Rice (Classic Reprint) - Tapa blanda

Sinopsis

Excerpt from The Assimilation of Nitrogen by Rice

In the process of nitrification ammonia represents one stage in the oxidation of organic nitrogen, and if conditions are not favorable for complete oxidation, the process may end at this point. In arable soils it is not infrequent to find rather large quantities Of ammonia. Fraps,1 for instance, found that the ammonia content Of some Texas soils exceeded the nitrates, and that the application of certain Organic nitrogenous fertilizers resulted in the accumulation in the soil of greater quantities Of ammonia than of nitrates. This author refers to active nitrogen as including both nitrates and ammonia, and points Out that in considering the available nitrogen Of soils, greater atten tion should be given to ammonia.

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