Soybean – Page 2 – Gramophone

Seed Treatment in Soybean

14/06/2020 Tuesday January 12th, 2021

Seed treatment in soybean crops helps in controlling the fungal and bacterial diseases spread by fungus and bacteria.
To protect against the disease, for one kg of seeds use Carbendazim 12% + Mancozeb 64% 3 grm or Carboxin 37.5% + Thiram 2.5 grm or Thiophanate methyl + Pyroclostrobin 2 ml of phosphate solubilizing bacteria + Trichoderma viride 2 gm / kg, + 5 gm + Rhizobium culture 5 grams per kg seed.
After that spread the seeds in a flat shady place and cover them with soaked jute bags.
Sowing immediately after seed treatment, it is not advisable to keep the seed for too long.
Then sow the treated seeds evenly. Keep in mind that sowing the seeds in the evening because of high temperature increases the chances of destroying germination.

Soybean Seed Treatment: -Treat the soybean seeds with carboxin 37.5% + Thiram 37.5 WP @ 250 gms per quintal of seed before sowing. or treat the seeds with Carbendazim 12%+ Mancozeb 63% @ 250 gm per quintal of seed or Thiophanate methyl 45%+ Pyraclostrobin 5% FS @ 200 Ml/quintal of Seed. After that treatment treat the seed with Imidacloprid 30.5% SC @ 100 ml/ quintal of seed or Thiamethoxam 30% FS @ 250 Ml/ Quintal of seed gets protection 30 Days from Sucking pest.

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Soybean Field preparation

01/06/2019 Tuesday January 12th, 2021

For Better Seed Germination, Soil should be well Pulverized and ploughed.
Deep summer ploughing once in 2-3 years or one normal summer ploughing followed by 2-3 cross harrowing are suitable for the soybean crop.
If the moisture content is less in the soil, with pre-sowing irrigation add 4 kg of speed compost per acre to the field and prepare it for sowing, in the last, Level the farm through leveler.

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Control of Anthracnose or Pod Blight in Soybean

28/08/2018

Control of Anthracnose or Pod Blight in Soybean:-

Soybeans are susceptible to infection at all stages of development. Plants and seed may be infected.
If infected seed is planted, early disease development may result in damping off (seed or seedling rot causing plant death). Dark brown lesions develop on cotyledons, stem may collapse, and seedling may die under severe infection.
Most commonly, however, plants become infected during bloom and podfill (reproductive stages) due to spores spread from infected plant residue.
- Symptoms appear on stems, pods, and leaf petioles as irregularly-shaped brown blotches.
- Severe symptoms may include leaf rolling, premature defoliation, and stunted plants. Pods may be shriveled and contain less seed, moldy seed, or no seed
In some cases, pods can be diseased, and the seed may be infected but without symptoms in the seed.

Control:-

Healthy seed should be selected for sowing.
The seed should be treated with Thiram+Carboxin @ 2 g/kg of seed before sowing.
Continuous sowing in the same plot should be avoided.
Spray the crop with Carbendazim 12% +Mancozeb 63% WP@ 400 Gm/Acre at 10-15 days intervals, first spray be given on the appearance of symptoms.
In Several Attack, spray the crop with Tebuconazole 25.9% EC @ 200 ml/Acre.

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Control of Gram pod borer in Soybean

30/07/2018

Control of Gram pod borer in Soybean

Symptoms of damage:-

The young larvae feeds on the chlorophyll of young leaves and skeletonize it.
They feed voraciously on the foliage in early stage,may defoliate the plant and later they feed on flowers and pods.

Management:-

Deep summer ploughing
Install pheromone traps at a distance of 50 Meter @ 5 traps/ha for each insect pest.
Clip terminal shoots on 100 days of crop growth.
Spray with Chloropirifos 20% EC @ 750 ml/acre or Quinolphos 25% EC @ 250 ml/acre
Spray Deltamethrin 2.8% EC @ 250 ml/acre or Flubendiamide 20% WG @ 100 gm/acre

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Control of white grubs in Soybean and Groundnut

26/07/2018

Control of white grubs in Soybean and Groundnut:-

Symptoms of damage:

The grubs feed roots. Grubs feed on fine rootlets, resulting in pale wilted plants, dying in patches.

Management of White grubs:-

Bio-Control:- Soil application- For soil insect pest like White Grubs,Termite, Agrotis species etc Mix 2.0 kg to 4.0 kg Metarhizium anisopliae with 50 kg of well decomposed fym/compost/field soil and broadcast in the field of 1 acre at the time of field preparation or in standing crop. Foliar spray – Mix 2.0 kg Metarhizium anisopliae, in 150 – 200 litre of water for spray on insect pest in the standing crop of 1 acre.
Spray should be undertaken as a community approach and should be repeated after every rainfall till the middle of July.
Spraying the trees close to the field with Chlorpyriphos 20 EC @ 2 ml/lit of water soon after first monsoon showers for 3-4 days in the late evening hours kills the adult beetles and reduces root grub infestation.
Seed treatment with chlorpyriphos 20 EC ( 6.5 to 12.5 ml/kg seed) is found effective.
In case of severe infestation apply Carbofuran 3% @ 10 kg/ Acre or Chlorpyrifos 20% EC @ 500 ml/acre or Phorate 10% G @ 10 kg/ha.

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Management of Collar Rot in Soybean

25/07/2018

Management of Collar Rot in Soybean:-

Symptoms:-

Infection usually occurs at or just below the soil surface.
Sudden yellowing or wilting of plants is the first symptom.
Light brown lesions, which quickly darken, enlarge until the hypocotyl or stem is girdled.
Leaves turn brown, dry and often cling to dead stem.

Management:-

Deep ploughing in summer.
Crop rotation with maize or sorghum.
Destroy infected stubble.
Seed treatment with Carbendazim or Thiram 2g/kg of seed.
Spot drenching with Carbendazim @ 3 gm/liter or Thiophanate methyl 70% WP @ 2 gm/liter of Water.

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Control of Semilooper In Soyabean:-

24/07/2018

Semilooper In Soyabean:-

Soybean looper is a more serious pest in soybeans.
Crops can be attacked at any stage but are at greatest risk during flowering and podding Stage.
They chew holes in the leaf, and then feed from the leaf margin.

Control :-

Deep Summer Ploughing.
Spray Quinalphos 25 EC @ 400ml/Acre or Profenophos 50% EC @ 400ml/Acre or Spinosad 45% SC@ 60ml/acre.

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Control of White fly in Soybean

21/07/2018

Control of White fly in Soybean :-

Nymph and adults suck the cell sap from the leaves. The affected leaves curl and dry.
The affected plants show stunted growth. White flies are also responsible for transmitting yellow vein mosaic virus or leaf curl disease.
3-4 foliar spray of Profenofos @ 50 ml/pump or Thaimathoxam @ 5 gm/pump or Acetamiprid 20% SP @15 gm/pump at 10 days interval.

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Management of Tobacco caterpillar in Soybean

20/07/2018

Symptoms of damage: – Larvae feed on the chlorophyll of the leaves. The eaten leaves give the appearance of whitish yellow web.

Management

Deep summer ploughing.
Avoid pre-monsoon sowing.
Optimum seed rate (70-100 kg/ha) should be used.
Collect and destroy infested plant parts, egg masses and larva.
Install sex pheromone trap @10 traps/ha for early deduction of the pest.
Erection of bird perches @10-12/ha.
Field Sanitation;Remove the infested plant parts at least once in 10 days and bury them in compost pit to monitor and reduce the populations of tobacco caterpillar. Traps are used for monitoring the pest situation.
Install five sex pheromone traps per hectare (change septa after 3 weeks), specific for male adults of tobacco caterpillar (separate pheromone for each).
Apply Profenophos 50 % EC@ 400 ml/acre or quinalphos 25% EC @ 400 ml/acre
In case of severe infestation apply Emamectin Benzoate @ 80 Gm/acre

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