Role of Calcium in Onion

06/11/2017Posted on

Calcium is an important nutrient in onion and has a key role to play in crop yield and quality. Calcium promote enhance of root establishment and elongation of cells resulting increasing plant height. It also has a improve tolerance of disease (Black rot) and chilling injury. Although recommended dose of calcium in the onion are good for yield, quality and storage capacity. Recommended dose of calcium is 10 Kg / ha or according to soil testing report.

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Subsidy on Onion Storage House

03/11/2017Posted on

According to the drawing-design of NHRDF Nasik under the project, provision of 25-50 MT of onion storage house is provided. According to the MIDH Norms, 25 metric tones, the fixed unit cost is Rs. 50% grant on 1.75 lakh maximum amount Rs. 0.875 lakh and 50 metric tones. Estimated unit cost amount 3.50 lakh 50% grant maximum amount Rs. 1.75 lac is payable. The project is applicable in all districts. Farmers of all classes can take advantage. Register for online application and contact Senior Horticulture Development Officer.

Source:- http://www.mphorticulture.gov.in/schemes.php

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Management of Purple Blotch in Onion

30/10/2017Posted on

Management of Purple Blotch in Onion:-

Initially small, elliptical lesions or spots that often turn purplish-brown which are surrounded by chlorotic margin. If the spots enlarge, chlorotic margin extend above and below the actual lesion. Lesions usually girdle leaves, causing them to fall over. Lesions may also start at the tips of older leaves.

For managing the disease effectively, healthy seed should be used. Crop rotation of 2-3 years with non related crops should be followed. Spay fungicides, Mancozeb 75% WP @ 45 gm/15 litre of water or Hexaconazole 5% SC @ 20 ml/15 litre of water or Propiconazole 25% EC @ 15 ml/ 15 litre of water at 10-15 days intervals from 30 days after transplanting or as soon as disease appears.

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Thrips management in Onion

29/10/2017Posted on

Thrips (Thrips tabaci) is most injurious insect pests of onion. These are common all over the country where onion crop is grown. Onions infected with thrips develop spotted appearance on leaves which turn pale-white blotches due to drainage of sap. Sometimes 50-60% losses in bulb crop are observed due to thrips attack. Seed production including viability of seeds are hampered due to attack of thrips. The insect is very minute and yellow to dark brown in colour. The life-cycle of insect is 8-10 days. It is found in the axil of green leaves where it sucks juice of early-emerging leaves. The adults hibernate in soil, on grass and other plants in onion fields. The thrips also over-winter in bulbs and act as source of infestation in the following year. They multiply in a large number during March-April on seed and bulb onions in Northern parts of India. The infested plants show stunted growth with twisted leaves. If the infestation comes in early stage of growth, bulb formation stops completely and plants die slowly. Bulbs in store are also attacked by thrips. Profenofos 50%EC @ 45 Ml/pump or Emamectin Benzoate @ 15 Gm/pump or Spinosad @ 10 Ml/Pump should be sprayed along with silicon base solvent to control the insect. Soil application of Fipronil 0.03% GR @ 5 Kg /Acre or Phorate or Carbofuran granules @ 4 kg /Acre is also recommended.

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Ideal soil and its preparation for growing Onion

25/10/2017Posted on
  • Onions can be grown on various soils. But sandy loam, silty loam, and deep friable soils are best suited for onion crop.
  • The land is prepared by giving 5-6 ploughings.
  • The optimum pH range is between 5.8 and 6.5. For maintain, pH level apply 50 kg gypsum per ha. (According to soil pH Level).
  • Land should be prepared in such a way that the excess water can be drained out easily and make weed free. Apply the field with 15-20 tones of well-composed FYM before last ploughing.

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Irrigation management in Onion

23/10/2017Posted on

Irrigation requirement of onion depends upon the season, soil type, method of irrigation and age of the crop. In general, onion needs irrigation at the time of transplanting, three days after transplanting and subsequently at 7-10 days interval depending upon the soil moisture. In general, Kharif crop needs 5-8 irrigations, the late Kharif crop requires 10-12 and Rabi crop needs 12-15 irrigations. Onion being a shallow rooted crop, needs frequent light irrigation to maintain optimum soil moisture for proper growth and bulb development. Irrigation needs to be stopped when the crop attains maturity (10-15 days before harvest) and the top starts falling which helps in reducing the rotting during storage.

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Time of fertilization in Onion

18/10/2017Posted on

Time for Fertilization onion: –
1. At the time of preparation of the field
2. While Transplanting
3. 20-30 days after Transplanting
4. 30-45 days after Transplanting
5. 45-60 days after Transplanting
6. If any quantity of fertilizer has not been given for any reason, then some quick dissolving fertilizer can be given in 75 days.

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Symptoms of Deficiency and Dose of Sulphur in Onion

09/10/2017Posted on

Resulting of sulphur deficiency the leaves show a general overall chlorosis. The yellowing is much more uniform over the entire plant including young leaves. Soil application of Sulphur @ 30kg/ha is recommended as basal dose, although sulphur is given in many forms, but by giving sulphur 80% WDG as spraying, it also works as fungicide and miticide, so use sulphur 80% WDG @ 50 gm / 15 litres of water.

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Weed management in Onion

30/09/2017Posted on

Weed management in Onion:- Application of Pendimethalin 38.7% CS @ 100ml/15 litre of water or Oxyfluorfen 23.5 EC @ 15ml/15 litre of water at 3 days after transplanting are recommended for effective weed control in onion along with one weeding by hand at 25-30 days after transplanting in kharif crop and 40-45 Days After Planting in rabi crop. The use of rice straw mulch or wheat straw mulch during rabi season is recommended to enhance the yield also. The combined application of Oxyfluorfen 23.5 % EC @ 1ml/l + quizalofop ethyl 5 % EC @ 2 ml/L at 20-25 days after transplanting and having at 30-35 days after transplanting good control of weed and higher bulb yield.

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Fertilizer and Manure in Onion

29/09/2017Posted on

Mix the FYM at the rate of 15-20 t / ha at the time of preparation of the soil. Nitrogen 120 kg /. ha Phosphorus 60 kg/ha Potash 75 kg / ha and By giving 20 kg sulfur, 10 kg of borax and 10-15 kg Zyme, the yield and quality increase.

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