Cultivation Of Crops: Greenhouse structure

Sep 26, 2015

Advantages and Disadvantages of Greenhouse Technology

Greenhouse technology is the unique technique of providing favorable conditions to the plants. Growing plants is both an art and science. In spite of many challenges man has learnt how to grow plant under natural environment. Even in extreme adverse climatic conditions where no crops can grow, man has developed a method of growing high value crops which is called as Greenhouse Technology.

This method is used to protect the plants from adverse climatic condition to the plants such as cold, wind, precipitation, excessive radiation, extreme temperature, insects and disease. In Green house technology the environmental conditions are modified using green house / glass house so that one can grow any plant in any place at any time by providing suitable environmental conditions with less labour.

Greenhouses are framed or inflated structures covered with transparent or translucent material large enough to grow crops under partial or fully controlled environmental conditions to get optimum growth and productivity.

Advantages of Green House Technology:

10-12% increase in yield depending upon the type of greenhouse, type of crop, environmental control facilities

Reliability of crop increases in green house cultivation

Expands your growing season

Expanding the variety among your produce

Minimize external threats to your crop

Disadvantages of Green House Technology

High upfront and operating expenses

Lack of pollination

Careful precautions must be taken to eliminate any pest or diseases to make sure your next crop won’t be affected

It is possible to get back the investment on greenhouse within a period of 3-5 years period. The success of green house depends on the scale of the project. Minimum recommended project with right economic viability and long term sustainability is around 1 to 2 years.

Jun 14, 2015

Greenhouse Farming and it's advantages

Greehouse farming Greenhouse structure

Greenhouse is a structure with covering (glass / plastic / specialized materials) which is used to control temperature, humidity and provide protection to plants.

The materials come in different color, size and thickness, choosing materials carefully will help you have the best greenhouse for your situation.

Advantages of Greenhouse

Greenhouse controls temperature:

Greenhouse design allows light in and it's absorbed by objects inside the greenhouse and turns into heat energy which is not permitted to escape.

In Greenhouse, air temperature will not exceed the outside temperature.

Ventilation panels can be opened to reduce temperature if it gets too hot, because temperature fluctuation can stress plants and slow growth.

Control Pests:

Pests can't enter easily as they could if your plants were just out in the open because greenhouse has a pretty good covering.

Controls Humidity:

In greenhouse air-tight covering causes it to become quite hot and humid during day time. Once the air becomes humid, it's difficult for plants to lose water through evaporation.

This helps to keep everything from drying out on a hot sunny day. Therefore, it's essential to have air circulation to exhaust excessive humidity and regulate air exchange.

Protects plants from adverse weather conditions:

Greenhouse gives protection against excessive rainfall which creates powdery mildew and mold that can affect the final crop.

Greenhouse protects your plant from heavy storms and in areas where frosts are common.

Storms can't blow your plants, when they are safely inside green house and also helps protects the plants in areas where frosts are common.

See also:

Advantages of Drip Irrigation

Advantages of Sprinkler Irrigation

Advantages of Plastic Mulching Sheets