STUDIES ON THE INTEGRATED USE OF NITROGEN AND POTASSIUM FERTIGATION WITH BORON SPRAY ON SEED YIELD AND QUALITY OF ONION (Allium cepa L.)
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Date
2018-05
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UHF,NAUNI
Abstract
ABSTRACT
The present investigation, “Studies on the integrated use of Nitrogen and Potassium
fertigation with Boron spray on seed yield and quality of Onion (Allium cepa L.)” was carried
out at the Pandah experimental farm and laboratory of the Department of Seed Science and
Technology, Dr. Y. S. Parmar University of Horticulture and Forestry, Nauni, Solan-173230
(H.P.) during two consecutive years (2014-15 and 2015-16). One experiment was laid in field
in Randomized Block Design (Factorial) with 20 treatments and three replications. Disease
free, healthy, uniform sized bulbs of about 60-65 g in weight were selected and were planted
at a spacing of 45 x 30 cm in 60 plots of 1.5 m X 1.2 m. Three fertigation levels with 10
different combinations along with 0.1% Boron foliar spray were tried. Second experiment
was laid out in laboratory in Completely Randomized Design (Factorial) with 20 treatments
and four replications. The effect of NK treatment and Boron spray on plant and seed quality
attributes and its effect on storage quality of seeds for 8 months were observed and recorded.
Analysis of variance showed significant differences among the treatment combinations for all
the characters studied. Non significant differences of available soil NPK, soil pH, organic
carbon (%) and soil electrical conductivity. The fertigation treatment combination of N100K100
along with Boron (@ 0.01%) foliar spray before flowering performed well for all the plant
and seed quality attributes. Therefore, can be recommended for commercial seed production
of onion.
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