Abstract:
Fertigation and broadcast methods of application were compared for N and P
fertilizers to maize in pot and field studies. In pot culture fertigation was better than
broadcast at equivalent doses of P to increase plant dry matter and P uptake. Whereas
fertigated N was not different than broadcast for these parameters. Lower dose of
fertigated N and P produced comparable dry matter to higher dose of broadcast P. In the
field experiment, maximum grain yield was obtained where N and P were applied by
fertigation. The values for P uptake, P use efficiency (PUE), agronomic efficiency (AE)
and value cost ratio (VCR) were higher in fertigation than broadcast method of
application.
