Productivity of Rabi onion

Onion [Allium cepa L.] is one of the most important commercial vegetable crops of Chitradurga district. It is mainly grown by small and marginal farmers. It is mainly grown for commercial bulb production during Kharif. Very less number of farmers goes for seed production during Rabi season with local varieties. This new extension approaches may help to farmers for technical interventions on seed production and self-reliance for quality seeds in district.

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The experiment was conducted at University of Agricultural Sciences, Dharwad during rabi season of 2014-15. The main aim of experiment was to enhance the production of onion through assess the impact of salicylic acid.

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Increase in production and productivity of Rabi onion, creation of improved stores for Rabi harvest and possibilities of growing Kharif and late Kharif onions are some of the viable options that can be explored to make the state near selfsufficient in onion (Dhar et al., 2016).

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In Vadavathur village, small onion is cultivated in two main seasons viz., Early kharif and Rabi in an area of 425 ha with a productivity of 14 tonnes / ha. Small onion is mainly affected by dew drops during the month of November to January, where the minimum temperature falls between 12 to 140C for 17 days and caused tip drying. Presence of dew drops in tip of onion leaf sheath for a long time may lead to death of terminal leaf tissue resulted in tip drying and also reduction in yield of 0.7 to 2 tonnes / ha.

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A field experiments was conducted at NHRDF, Regional Research Station, Chitegaon, Nashik in three consecutive years during rabi 2013-14, 2014-15 and 2015-16 on onion variety NHRDF Red-2 for the management of onion thrips through basal application and spray of different insecticides. The soil application of the treatments was given before planting and spray was started at 10 DAP after the appearance of thrips and subsequently sprays were given at ten days interval.

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The study examined resource use efficiency of kharif vis-a-vis rabi onion in Ahmednagar district of Maharashtra state. It was observed that, the major resources viz., organic manure, potash, plant protection, machine labour and hired labour used in onion cultivation showed a positive relationship in case of rabi onion and in kharif season organic manure and potash showed a negative relationship, It was partly due to influence of climatic condition in kharif season.

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Demonstrations are the one of the most important tool for transfer of technology at grass root level that directly impacts the spread of technology. Onion is grown in kharif, late kharif and Rabi seasons in India, major onion grown in Rabi season all over India, but it’s cultivated on upland in kharif/ late kharif all over India. Even though its productivity recorded is low due to lacking in knowledge of scientific production technology and high yielding variety suitable to soil and climate.

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Vadavathur in Namakkal District is a drought prone village. The annual rainfall is 400 mm. In Vadavathur village, small onion is cultivated in two main seasons viz., Early kharif (May – August) and Rabi (November – December). Generally small onion is propagated by means of bulbs. However, NICRA village Vadavathur experienced aberrant rainfall situations with minimum rainy days for the past 5 years during sowing season especially during Rabi impacting adversely small onion production and livelihood of farmers.

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Field studies were conducted for three consecutive Rabi seasons during 2014 to 2017 in a 30-year old mango mother orchard where trees were not allowed to bear fruit and only scion materials were obtained for grafting purpose to get planting materials of mango.

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A field experiment was conducted during Rabi season (2014) at Millet Breeding Station of TNAU, Coimbatore, TamilNadu to evaluate little millet based intercropping system under rainfed condition with five intercrops viz., radish, coriander, small onion, blackgram and greengram in 8:2 ratio under replacement series. Improvement in plant height, DMP, productive tillers plant-1 , grains panicle-1 , thousand grain weight and little millet grain equivalent yield (LMGEY) were recorded in intercropping over sole little millet.

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Onion is one of the important and commercial vegetable crops of India. Onion is sulphur loving crop and its requirement is high for improved yield and quality. Sulphur has been recognized as an important nutrient for higher yield, quality and nutrient uptake of onion bulbs. Keeping these in view, a field experiment was conducted at ICAR- National Institute on Abiotic Stress Management (ICAR – NIASM), Baramati, during Rabi, 2017-18 to study the effect of sources and levels of sulphur on bulb quality and grading in onion (cv. Bhima Kiran).

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The field experiment was carried out to study the effect of foliar spray of micronutrients and growth regulators on seed quality of onion during rabi 2016-17 and 2017-18 at Seed Unit, UAS, Raichur. Foliar spray was given at 45 and 75 days after bulb planting (DAP). The seed quality parameters were recorded at Seed Unit, UAS, Raichur. From the present investigation, a significant increase in seed quality parameters were recorded with foliar spray of ZnSO4 @ 0.5 per cent viz., root length (12.92, 12.74 and 12.83 cm), shoot length (9.51, 9.59 and 9.

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Garlic (Allium sativam L.) is the second important bulb crop after onion. It is very hardy vegetable crop and is grown throughout India. It reduces the cholesterol in the blood. The garlic extracts also the nematicidal fungicidal and bacterial properties. Garlic is in flavorings food, preparing chutneys, pickles, curry powder, tomato ketchup etc. It is rich in proteins, phosphorus, calcium, magnesium and carbohydrates. China rank 1st in area and production (7.79 lakh ha and 179.68 lakh MT, respectively) and India is the second in area (2.05 lakh ha) and production (10.70 lakh MT).

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A field experiment was conducted during 2 rainy (kharif), winter (rabi) and summer seasons (2015-17) on a sandy clay loam soil at New Delhi to evaluate 5 cropping systems viz., maize–pea–okra, maize–mustard–green gram, cotton–wheat, bottle gourd–onion and okra–wheat, for productivity, profitability and energetics. The experiment was laid-out in a randomized block design replicated 4 times. Bottle gourd–onion cropping system recorded the highest wheat-grain-equivalent yield (WGEY) of 19.9 t/ha, followed by maize–pea– okra (14.06 t/ha).

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