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 |
The study was carried out during 2015-2016 at College of Agriculture, Navile, Shivamogga by raising single radish plant per pot. Six levels of Nitrogen, i.e. 0, 50, 75, 100, 150 and 200 percent of recommended level of nitrogen per plant (225.00 mg N/plant) were applied twice, before sowing and two weeks after sowing. Sampling for aphid Brevicoryne brassicae (L.) was done at weekly interval. The mean incidence of aphids increased as nitrogen level increased which was significantly different among plants receiving different levels of Nitrogen. High level of N application as 337.50 mg N/plant and 450.00 mg N/plant recorded significantly higher incidence of aphids (334.69 and 478.13 aphids/plant, respectively) compared to 225 mg N/plant [Recommended Package of Practices (RPP)].
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