Seed Production of Vegetable, Tuber and Spice Crops (2+1)

1. Natural Drying (or) Sun drying

• Here the seeds are uniformly spread over clean dried yard and allowed for drying to the required moisture level.
  
• The seeds should not be dried under hot sun during 12.00 noon to 2.00 pm as it causes damage to seeds by UV rays.
  
• This method depends on weather conditions, which are unpredictable one.
Advantages

• Easy process
• Cheap method
• Requires no additional equipment
• Does not require any expenditure on electricity or fuel
Disadvantages

• More chance for mechanical admixture
• Seed loss is more while drying due to insects, birds and animals.
• Takes long time for drying.
• Uneven drying.
• High weather risk and damage due to sudden rain or heavy wind.