Abstract:
Integrated nutrient management
strategies involving chemical and
biological fertilizer is a real challenge to
stop using the high rates of agrochemicals
and to enhance sustainability of crop
production. In order to study the effects of
biofertilizers (Cerialin and Nitrobein) and
chemical nitrogen levels (0, 85,170 and
250 kg N ha-1) on yield and yield attributes
of two wheat cultivars (Sakha 94
and Gemmeiza 10), an agricultural
experiment in the form of strip-split
factorial design with three replications
was conducted in Kafr El-Sheikh region,
Egypt, in 2014/2015 and 2015/2016
growing seasons. The objective of this
study was evaluation of the effects of
these fertilizers separately and in
integrated forms, and setting out the best
fertilizer mixture. The results showed that
treatment with biofertilizers and chemical
nitrogen increased the growth, yield
attributes, biological and grain yield. Both
grain and biological yield produced a
better result during the combination of
nitrogen fertilizer and biofertilizers than
using either method alone. Using biofertilizers
increased biological yield through
increase in number of grains spike-1,
number of spikes m-2 and 1000 grain
weight, which cause to increase in grain
yield with significant changes in harvest
index, as well as protein content. We may
conclude that using biofertilizers (Cerialin
or Nitrobein) and chemical nitrogen
fertilizer (170 or 250 kg N ha-1) together
had the maximum impact on yield. Then,
we can decrease use of chemical
fertilizers through using biofertilizers.
