Micro-irrigation has become an optimal means for providing
water and nutrients to crops. In countries where the cost of water is
very
low,
such
as
India,
the
adoption
of
micro-irrigation
has
initially
been very slow. Recently however, drip irrigation combined with
fertigation has been found to benefit farmers because of the very
high
efficiency
of
fertilizer
use
for
such
irrigation
schemes.
There
is
an ample scope for improving the efficiency of fertilizer use through
fertigation, if the movement and reactions of fertilizers in the soil
are well understood.