Management of Black Scurf Disease of Potato

Management of Black Scurf Disease of Potato:-

  • The black scurf of tubers appears as a black crust on the skin due to the formation of fungus.
  • Rhizoctonia canker/black scurf occurs when stolons contact soil-borne fungal bodies.
  • Symptoms can be observed on above and below ground plant parts.
  • Symptoms observed above ground early in the season include necrosis at the tips of the sprouts and sunken lesions on stolons, roots, and stems.
  • Later in the season stems with cankers can become girdled, resulting in stunted plants.
  • Leaves of infected plants develop a purplish and chlorotic colouration.
  • The pathogen infects plant tissue and causes stolon blinding thus reducing tuber production and yield.

Management

  • Conduct a soil test prior to the establishment of the crop to know nutrient content and soil pH. Low pH is not conducive for disease development.
  • Use disease-free soil. Avoid areas with a history of potato production or history of potato scurf and stem canker.
  • Use certified potato seed and assure disease-free propagation material. If the seed is not certified, it should be treated with antagonists or fungicides before planting.
  • Apply Sulphur 90% WDG @ 6 kg/acre or Use Ammonium Sulphate as Nitrogenous Fertlizer.
  • For the better control of this disease, seed treatment must be applied with pencycuron 250 SC @ 25 ml/quintal tubers or Penflufen @ 10 ml/quintal tubers.

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Land Preparation for Watermelon Cultivation

Land Preparation for Watermelon Cultivation:-

  • Watermelons can grow in many kinds of soil, but prefer a light, sandy, fertile loam that drains easily.
  • Add generous amounts of manure, compost and leaves to your field and work the soil well prior to planting.
  • Fields should be prepared thoroughly by plowing and harrowing and removing the different types of plant debris.
  • A gentle, south-facing slope is ideal.
  • It should also be pulverized and leveled; furrows are made 2 m apart.

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Irrigation Management of Wheat

Irrigation management of wheat:-

  • It is very important to irrigate on time to get a good harvest.
  • Irrigation should be done at the time of crown root Initiation and milking in the crop.
  • If there is rain in the freezing weather, then you can also reduce irrigation. According to agricultural scientists, irrigation should be stopped for some time when the wind started moving.
  • Agriculture scientists also say that the water should not be stored for more than 12 hours in the field.
  • The first irrigation should be done after about 25 days of sowing in wheat cultivation. The second irrigation should be done approximately 60 days later and the third irrigation after about 80 days.

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Soil requirement for muskmelon

Soil requirement for muskmelon –

  • Muskmelon can be cultivated on wide range of soils.
  • cultivation is best suited on sandy loam/light textured, warm, well-drained soils with high organic matter. High yield within organic matter.
  • High yield with good flavor can be expected with soil pH 6.0 to 7.0.
  • Soil temperature below 15°C slow the seed germination and growth.
  • Alkaline soil with high salt concentration is not suitable for cultivation.

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Important Practices for Increase Yield of Watermelon

Important Practices for Increase Yield of Watermelon:-

  • Mulching with black plastic will serve multiple purposes: it will warm the soil, hinder weed growth, and keep developing fruits clean.
  • Watering is very important—from planting until fruit begins to form. While melon plants are growing, blooming, and setting fruit, they need 1 to 2 inches of water per week.
  • Keep soil moist, but not waterlogged. Water at the vine’s base in the morning, and try to avoid wetting the leaves and avoid overhead watering. Reduce watering once fruits are growing. Dry weather produces the sweetest melon.
  • If you choose to fertilize (and many do), make sure it delivers more nitrogen than phosphorus and potassium. However, after flowering begins, use a fertilizer with less nitrogen. We like to use liquid seaweed.
  • Pruning isn’t necessary, but vine productivity may be improved if you do not allow lateral (side) vines to grow and stick to the main vine. When the plant is young, just cut off the end buds as they form (before the side shoots become vines). You can also pinch off some blossoms to focus the energy on fewer melons (though it’s a challenge to kill off a potential fruit).
  • Vines produce male and female flowers separately on the same plant. They often begin producing male flowers several weeks before the females appear. Do not be concerned if the male flowers fall off. The female flowers (which have a swollen bulb at the base) will stay on the vine and bear fruit.
  • Blossoms require pollination to set fruit, so be kind to the bees!
  • As fruit is ripening, prevent rotting by gently lifting it and putting cardboard or straw between the fruit and the soil.

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Sowing Time of Clusterbean (Guar)

Sowing Time of Clusterbean (Guar):-

  • Quality of seeds is a most important for maintaining optimum plant stand.
  • Crop should be sown at the onset of monsoon in the first fortnight of July under rainfed condition.
  • Under irrigated condition, it can be sown up to the last week of July.
  • Planting time also plays very important role for the crop grown during summer season.
  • Last week of February to first week of March is the most suitable time for cluster bean sowing for summer’s crop.
  • Delayed in sowing, flowering may be affected due to high temperature which may result in decrease in seed yield.
  • Therefore, timely sowing for summer crop is very important non-monetary input. Temperature should be 25 to 30 C at the sowing time of summer cluster bean.

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Suitable Climate for Muskmelon Cultivation

Suitable Climate for Muskmelon Cultivation:-

  • The best sowing time of muskmelon is November to February.
  • The muskmelon thrives best and develops the highest flavor in a hot dry climate.
  • High temperature and sunshine produce melon high in sugar contents.
  • Though sweetness and fine flavor are hereditary characteristics, yet they are greatly influenced by environmental condition.
  • It is highly susceptible to frost; it is grown as a summer crop.

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Control of Aphids in Pea

Control of Aphids in Pea:-

  • Small green insects, adults are large pear-shaped green, yellow or pink in color.

Damage:-  

  • Suck the plant sap from leaves, flowers and pods.
  • The affected leaves often get cupped or become irregularly distorted, shoots become stunted and malformed.  
  • Honeydew secreted by the aphids encourages growth of Sooty mould.

Control:-

  • Spray the crop with Following insecticides at 15-20 days interval till the end of aphid population checked.
  1. Profenofos 50% EC @ 50 ml/ Pump.
  2. Acetamiprid 20 SP @ 10 gm/Pump.
  3. Imidacloprid 17.8% SL @ 7 ml/pump.

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The likelihood of Frost

The likelihood of Frost:

  • The effect of frost on plants is ordinarily more in winters.

  • When the temperature drops down to zero degrees or beneath and the cool breeze doesn’t blow, the evenings have high odds of seeing icing or frosting.

  • However, it tends to be evaluated if frosting will happen or not by means of the environment and the behaviour of the breezes blowing.

  • Frosting happens when there are cool breezes blowing toward the evening and the temperature dips under the amassing point.

  • If suddenly the breeze stops blowing and after that the sky is clear or if even around evening time there is no indication of winds, there are high odds of frosting.

  • Normally, if the temperature goes down and the breezes blow there is no harm yet on the off chance that they all of a sudden stop and the sky is clear, icing or frosting will undoubtedly occur and it is harmful to the crops.

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Control of Fruit borer in Tomato

Control of Fruit borer in Tomato:-

  • The borer enters the fruits making circular holes and completely destroys them resulting into heavy losses both in quality and yield.
  • For the effective control of this pest, spray Profenofos 40% EC @ 400 Ml/Acre or Indoxacarb 14.5% SC @ 200 Ml/ Acre or Emamactin Benzoate 5% SG 80 Gm/ Acre.

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