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					Title                       :    Studies on the effect of sulphur, zinc and boron
                                 application on the growth and productivity of
                                 transplanted rice (Oryza sativa L.)
Name of the student         :    Smeia Wani
Guide                       :    Dr. B.A. Khanday
Degree                      :    PhD
Year                        :    2006
Key words                   :    Boron, Growth, Productivity of rice, Sulphur, Zinc

                                       ABSTRACT

        A field experiment was conducted at Shalimar Campus during kharif seasons of
2004 and 2005 entitled “studies on the effect of sulphur, zinc and boron application on
the growth and productivity of transplanted rice (Oryza sativa L.)” on a silty clay loam
soil, low in available nitrogen and zinc, medium in available phosphorus, potassium and
boron. The experiment comprising of 18 treatment combinations viz., three sulphur levels
(0, 20 and 40 kg/ha), three zinc levels (5, 10 and 15 kg/ha) and two boron levels (0 and 2
kg/ha) was laid out in a randomized block design with three replications. The results
indicate that application of sulphur at the rate of 20 kg/ha recorded significant increase in
the yield and yield attributes with concomitant improvement in the growth characters as
well. The application of zinc at the rate of 10 kg/ha noticed the significant improvement
in the growth characters, yield and yield contributing characters of the rice. Boron at the
rate of 2 kg recorded significantly the higher yield of rice compared to control. The
growth characters and yield attributes also behaved in the similar fashion. 20 kg S/ha also
recorded the highest nitrogen, sulphur, boron and zinc content and uptake at different
stages of growth of plant. The zinc application at the rate of 10 kg/ha also resulted in the
higher content and uptake of N, S, Zn and boron. The crop growth rate, relative growth
rate, net assimilation rate, specific leaf weight and apparent translocation rate got
improved at S20, Zn10 and B2 compared to the other treatments in comparison. The
highest benefit : cost ratio of Rs.1.84 and net profit of Rs.35391.70 was recorded with
treatment combination of S20Zn10B0, hence the treatment combination is recommended
for obtaining most profitable grain yield of-rice under Kashmir conditions.
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