tailieunhanh - Effect of nitrogen fertilizer on population of aphid [Brevicoryne brassicae (L.)] in radish

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, . 0, 50, 75, 100, 150 and 200 percent of recommended level of nitrogen per plant ( mg N/plant) were applied twice, before sowing and two weeks after sowing. Sampling for aphid Brevicoryne brassicae (L.) was done at weekly interval. | Effect of nitrogen fertilizer on population of aphid [Brevicoryne brassicae (L.)] in radish

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