Nitrate nitrogen in inceptisol

Nitrogen in manure occurs mainly in organic forms (e.g., proteins) and as ammonium (NH4+). Some composted manures contain small amounts of nitrate. Ammonium and nitrate are plant-available forms of N, while organic N is not immediately plant-available. Before organic N can be taken up, however, it must first be converted to inorganic forms. This process, which is completed by soil microbes as a by-product of organic matter decomposition, is called mineralization. The mineralization rate is therefore the rate at which organic N is made plant available.

7p nguaconbaynhay3 07-02-2020 22 0   Download