a7b8739a_Soil_Management__Availability_for_plant_uptake
[Form of Nitrogen] Nitrate [Formula] NO3- [Availability for plant uptake] 
Nitrate is the second form of nitrogen which is available for plant uptake. In most soils, nitrate is highly mobile. However, in the highly weathered soils of Hawaii, nitrate is stored in soils with ‘anion exchange capacity’ and becomes less mobile.
Soil Management
Availability for plant uptake