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Rise and benefits of polyhouse farming in India

There have grown to be almost a million different polyhouse plants in India and there are more to come in the coming years to meet the market demand. The ease of controlling conditions for the plants to grow makes it a very viable option. A polyhouse is also the most economical option when compared to glass or wood. However, it is also the least durable.

October 23, 2020: A polyhouse is a form of a more economical yet less durable greenhouse where a specialised kind of polythene sheet is used as a covering material. Crops can be grown in partially or fully controlled climatic conditions in polyhouse farming.

Traditionally, the greenhouses were constructed on wooden frames where the glass.

With the advancement of plastic technology, it became possible to replace the glass with plastic material.

Image: BigHaat

 Polyhouses are more suitable for tropical and subtropical regions like India.

Modern-day polyhouses are built on G.I. steel frame and are covered with plastic, which is fixed on the frame with aluminum grippers.

Types of polyhouse

Based on the environmental control system, polyhouses are usually of two types- naturally ventilated polyhouse and environmental controlled polyhouse.

Image: agriculturegoods.com

A naturally ventilated polyhouse has vents on the tops and at the sides to exchange air.

On the other hand, in an environmentally controlled polyhouse, the temperature, light and humidity are controlled manually, depending upon the plants.

Polyhouses can also be of other types, based upon the number of spans (single span and ridge and furrow), based on the construction (low-tech and cheap, moderate and high-grade).

Polyhouse irrigation systems

Drip irrigation is the best technique for watering the greenhouse plants owing to the small root system.

It must be ensured that the water is dispersed at the root area only and that it does not fall on the leaves or flowers.

Falling on leaves and flowers may lead to infection, disease spread and even scorching.

Water is forced out through the nozzles under very high pressure through the micro-sprinklers.

These sprinklers are arranged at a height of 1 foot above ground level so as to ensure that water is dispersed at the basal part of the plants.

Image: Agriculture Guruji

Crops that can be grown in a polyhouse

  • Fruits that can be grown are papaya and strawberry.
  • Vegetables that can be grown include cabbage, bitter gourd, capsicum, radish, cauliflower, chili, coriander, onion, spinach, and tomato.
  • Flowers like carnation, gerbera, marigold, orchid and rose can also be easily grown.
Image: Agri Farming

The rise of polyhouse farming

There are various advantages of polyhouse cultivation over regular farming. That is why we are seeing a rise in polyhouse cultivation.

Also read: The many amazing health benefits of turmeric (Super-spice)

There are over almost a million different polyhouse plants in India and there are more to come in the coming years to meet the market demand.

  • The temperature of the environment can be controlled according to the needs and the yield obtained could be better. High humidity can also be adjusted accordingly.
  • In an open field, the crops are more prone to attacks by pests and insects which makes the farmers spray insecticides and pesticides and chemicals thus keeping the crops healthier for consumption and not reducing its nutritional values.

In an open field, invasion by animals and birds also result in almost one third of the crop being lost and this can definitely be avoided in a polyhouse.

  • The agricultural land in India has been reducing and polyhouse farming is the best way to overcome the situation.
    This is why there are various polyhouse farming training camps conducted in various parts of the country in various institutes that will promote the growth of polyhouse cultivation.
    We can get more produce and more crops by farming in a controlled manner and the profits and the quality of the produce is always higher in this case.
  • Productivity is polyhouse farming is 8 to 10 times higher than the crops grown in open fields. Organic farming is a lot easier under this structure.
Image: IndiaMart

Requirements of a good polyhouse

  • One requires a minimum of 1000 square mt. of the area to raise a commercially viable polyhouse. Availability of continuous sources of quality water is essential.
  • The site of construction should be higher than the surrounding land.
  • The selected site should be pollution free.
  • There should be a facility of good roads for transport of polyhouse produce to nearby markets.


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