National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692 Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
A field experiment on effect of planting date and foliar application of nutrients on crop growth and seed yield of soybean variety DSb 21, was conducted by following split plot design with three replications in Main Agricultural Research Station, UAS, Dharwad during kharif, 2016 and 2017. The experiment consisted of three sowing dates with fortnight interval (first fortnight of June, second fortnight of June and first fortnight of July) and foliar spray of eight treatments. Among the dates of sowing, first fortnight of June (D1) recorded significantly higher stem (9.86g/plant), leaf (7.91g/plant) and pod (2.78g/plant) at 60 DAS, highest total dry matter produced at 30, 60 DAS(5 g/plant and 20.55g / plant) and harvest (33.83 g/ plant), crop growth rate (17.23g /m2 day1) and leaf area duration (62.06 days) at 60-75 days after sowing. Foliar spray of KNO3 @ 0.5 % + KH2PO4 @ 0.5 % + Boron 0.50 % (T8) recorded higher stem weight (10.63 g), leaf (8.27 g) and pod (3.11 g) at 60 DAS, highest total dry matter produced at 60 DAS (22.02g), crop growth rate (17.38 g /m2 day1) and leaf area duration (60.23 days) at 60-75 days after sowing. Interaction effect of crop sown on first fortnight of June (D1) sprayed with KNO3 @ 0.5 % + KH2PO4 @ 0.5 % + Boron 0.50 % (T8) recorded highest stem (11.16g), leaf (8.69g) and pod (3.26g) at 60 DAS, highest total dry matter produced at 60 DAS (22.02g), crop growth rate (17.38 g /m2 day1) and leaf area duration (68.12days) at 60-75 days after sowing based on pooled analysis. In general, the results of this study indicated that planting date of first fortnight of June sprayed with KNO3 @ 0.5 % + KH2PO4 @ 0.5 % + Boron 0.50 % were suitable for soybean planting in the Dharwad region of Karnataka.
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