Abstract:
The present research was
conducted to study the influence of organic
and inorganic sources of nutrients as well as
antioxidant on rice quality. The experiment
was designed in split-split plots with four
replications, where main plots were
assigned to nitrogen (0, 55, 110 and 165
kg N ha-1) and sub plots were allocated to
compost (0, 3.5 and 7 tons ha-1), while the
sub-sub plots were assigned to ascobien
(control, spraying with ascobien in two
times at 15 and 30 days after transplanting
(DAT), spraying with ascobien three times
at 15, 30 and 45 DAT). The result indicated
that grain quality traits were significantly
influenced by the organic and inorganic
fertilizers, and ascobien. The percentage of
hulling, milling and amylose were positively
and significantly influenced by nitrogen,
organic and antioxidants application. Most
of studied characters produced the highest
values with the organic fertilize were
combined with nitrogen and antioxidants.
Application of 110 kg N ha-1, 7 t ha-1
compost and two or three spraying of
ascobien, 110 kg N ha-1 or 3.5 t ha-1
compost and three times spraying and 55 kg
N ha-1, 7 t ha-1 compost and two times
spraying could be recommended for
optimum grain quality of Sakha106 rice
variety. It can be concluded that compost
along with the foliar application of ascobien
can be saved from 50 to110 kg N ha-1,
without reducing grain quality. It can be the
key to reduce the need for chemical
fertilizers and decrease the cost of
production with keeping healthy soil.
