STUDIES ON INTEGRATED PRODUCTION AND PEST MANAGEMENT APPROACHES IN ONION (ALLIUM CEPA, LINDEMAN)R.K. Panse, S. K. Rajak, D. M. Kadam, Rishikesh Mandloi and Nand Ram Varma
The experiments were conducted at Vegetable Research Farm, Department of Horticulture, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Maharajpur, Jabalpur, Madhya Pradesh during 2009-12. The objective was to conduct trials for different input management to develop integrated production and pest management approaches. The results revealed that, the second week of October and 1st week of November were the optimum time of transplanting dates for better production of onion in relation to low incidence of insectpests and diseases. In INM module, the combined application of organic and inorganic fertilizers with bioculture (110:40:60:40 NPKS + 7.5 t FYM + 2.5 t VC + 5 kg PBS & Azospirellum culture ha-1) gave highest marketable bulb yield with highest equatorial and polar diameter and plant height. Application of Oxyfluorfen 23.5% EC @ 1.6 mL/L before transplanting + one hand weeding at 50 days after transplanting recorded highest marketable yield and weed control efficiency with maximum cost: benefit ratio. The application of Cabosulfan @ 5 mL/L + Tricoderma virdi @ 5 g/L as a seedling treatment, Profenofos 50 EC @ 2 mL/L + mencozeb 2 g/L (30 DAT), Beauveria bassiana, 10-9 spores @ 5 gm/L + Carbendazim 2 g/L (45 DAT), Fipronil 5 SC @ 1mL/L+ Carbendazim (60 DAT) and Neem oil @ 4% + Mencozeb (75 DAT) module registered reduced thrips population, cutworm damage, Stemphyllium leaf blight and purple blotch with higher bulb yield and cost: benefit as compared to untreated control.
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