STUDIES ON FOLIAR APPLICATION OF NUTRIENTS ON PRODUCTIVITY OF SOYBEAN [Glycine max (L.) Merrill]
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Date
2018-10-10
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Journal Title
Journal ISSN
Volume Title
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UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU
Abstract
A field experiment was conducted during the kharif season of 2016 at the Zonal
Agricultural Research Station, University of Agricultural Sciences, Bengaluru to evaluate
the effect of foliar nutrition on productivity of soybean crop (Variety MAUS -2). The
experiment was laid out in Randomized Block Design with three replications. There were
ten treatments consisting of various combinations of nutrient application viz. RDF +
water spray, RDF + Urea @ 2 % spray, RDF + DAP @ 2 % spray at pod initiation, RDF
+ MOP @ 0.5 %spray, RDF + NPK(19:19:19) @ 2% spray, RDF+ Molybdenum @ 0.5%
spray, RDF + Boron @ 0.5% spray, RDF + Zinc chelated @ 0.5% spray, RDF + biodigester liquid spray and RDF through organic source (FYM) @ 13.44 kg plot-1
. The
treatments were imposed during pod initiation stage of crop growth (45 DAS). The
application of RDF + DAP @ 2% spray resulted in significantly higher plant height at
harvest (40.32 cm), number of leaves plant-1
at 60 DAS and at harvest (37.73 and 10.46,
respectively), leaf area plant-1
at 60 DAS and at harvest (850.00 cm2 and 394.34 cm2
,
respectively), number of pods plant-1
(43.00), number of seeds pod-1
(3.00), number of
seeds plant-1
(88.37), higher grain yield (3772 kg ha-1
) and higher uptake of NPK (302.95,
35.42 and 108.88 kg ha-1
, respectively) compared to the other treatments. Foliar
application of DAP @ 2 % also recorded significantly higher oil content (22.01 %),
protein content (40.41 %), higher net return of ` 55,808 ha-1 and BC ratio of 2.84.