Analysis of Essential Elements for Plants Growth Using Instrumental Neutron Activation Analysis

Table 1

Primary forms of some nutrients intake by plants.

Elements	Symbols	Forms used by plants
Nitrogen	N	NH4^+ and NO3^−
Phosphorus	P	HPO4^2− and H2PO4^−
Potassium	K	K^+
Calcium	Ca	Ca^2+
Magnesium	Mg	Mg^2+
Iron	Fe	Fe^2+ and Fe^3+
Manganese	Mn	Mn^2+
Zinc	Zn	Zn^2+
Copper	Cu	Cu^2+
Molybdenum	Mo	MoO4^2−
Nickel	Ni	Ni^2+
Sodium	Na	Na^+