Cauliflower – Page 3

Nutrient management of Cauliflower

29/03/2018

Nutrient management of Cauliflower:-

Cauliflower is a heavy feeder crop.
Fertilizer dose depends upon the soil and amount of organic manure applied to the crop.
For a good yield, 15-20 tones of well decomposed FYM is incorporated in the soil about 4 weeks before transplanting.
Recommeded doses of fertilizer for normal varieties 100 Kg: 60 Kg P and 100 Kg K/ ha hybrids -120-180 kg N 100 Kg P and 100 Kg /ha.
Half the dose of nitrogen and full dose of P and K should be applied at the time of final preparation of field.
Remaining half dose of nitrogen should be applied as top dressing in spilt doses followed by earthing up.

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12/03/2018

Field preparation of Cauliflower

The field is ploughed to fine tilth by giving 3-4 ploughing with a sufficient interval between two ploughing.
Planting should be done on the flat land, ridge or in furrows depending on climate and soil conditions.
For early planting, ridge method is suitable especially in areas where the rains occur at time of planting.
In saline soils, planting are preferred in furrows and in dry areas transplanting on flat beds.

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The seeds are sown in nursery bed and 4-6 weeks old seedlings are transplanted to the field.
Raised beds of size 3*6 m. and 10-15 cm. in height are prepared.
About 70 cm. distance is kept between two beds to carry out intercultural operations.
The surface of nursery beds should be smooth and well leveled.
Well decomposed fym @ 8-10 kg/m. square is added at the time of bed preparation.
Raised beds avoid problem of water logging in heavy soils.
To avoid mortality of seedlings due to damping off, drench the beds three weeks before sowing with carbendazim 50% WP @ 15-20 gm/ 10 litre of water.

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15/01/2018

Alternaria Leaf spot in Cauliflower and Cabbage:-

Symptoms:-

Control:-

Use certified seeds.
Give hot water treatment to seed at 50^OC for 30 Minutes.
Spray the crop with Mancozeb 3 gm per litre of water or Copper oxychloride 3 gm per litre of water at 10-15 days intervals, first spray be given on the appearance of symptoms.

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Identification

Eggs are yellowish-white with greenish tings.
The caterpillars are 7-12 mm in length, pale yellowish green in colour with fine erect back hair scattered all over the body.
Adults are 8-10mm long greyish-brown in colour having pale whitish narrow wing inner yellow margins.
The adult female lays eggs on the leaves either singly or in groups.
White markings along the back of the fore wings which when folded from a diamond shaped pattern in adult diamond back moth.

Damage

Small slender green caterpillars on emergence feed on the leafs epidemics and later make holes in the leaves.
Severely affected leaves are completely skletonised.

Control

For the prevention of diamond back moth, bold mustard should be sown in 2 lines after every 25 lines of cabbage/Cauliflower.
Spray the crop with Profenofos 50% EC (3 ml/lit) or Spinosad 25% SC (0.5 Ml/litre ) or Indoxacarb (1.5 Ml/Litre) of water at fortnight intervals starting from 25 days after transplanting to control the pest.

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