NATIONAL SEMINAR ON FERTIGATION held on 15th Sept 2017 at Vadodara, Gujarat

Soil Solarisation

Soil Solarisation is normally done during summer months with temperature (air) more than 35°C for controlling weeds, seeds, bacteria, fungi, nematodes and other soil borne pathogens and pests by covering the moist soil with a transparent polyethylene film exposed to sunlight. The effectiveness of soil solarisation enhances plant growth by improving soil colour, structure, temperature, moisture etc.
Advantages
  • Controls weed, nematodes and other soil borne diseases.
  • Enhances germination and helps in the development of healthy seedlings.
  • Enhances plant growth and yield.
  • Helps in reducing usage of weedicides / herbicides.

Factors effecting Soil Solarisation:
  • Soil moisture
  • Day length
  • Temperature.
  • Intensity of sunlight.

Suggested polyethylene film for soil solarisation:
  • 25 micron transparent Polyethylene film
Physical identification of successful solarisation:
  • Water droplets collected in the inner surface of the film.
  • The upper surface of the will be very hot.
  • Weeds under the film will be eliminated due to high temperature.