Why is it important to dry agricultural produce first in sunlight and then in shade before storage?

The correct answer is To reduce moisture content and prevent growth of pests and fungi.

Step-by-Step Explanation:

1. Understanding Moisture Content in Fresh Harvest:
Harvested agricultural produce (such as grains, pulses, and seeds) contains a high percentage of moisture. If stored immediately with this excess moisture, it creates an ideal environment for microorganisms and pests to thrive.

2. Role of Sunlight Drying:
Drying the produce initially under direct sunlight rapidly reduces the bulk of its internal moisture content. Sunlight also helps in killing any surface microbes, fungal spores, or insect eggs present on the grains.

3. Role of Shade Drying:
After sunlight drying, shade drying allows the grains to cool down uniformly and dry further without cracking or losing essential nutrients, quality, or seed viability due to excessive heat.

4. Prevention of Spoilage:
Reducing the overall moisture content prevents the growth of fungi (molds), bacteria, and insect pests during long-term storage, thereby preserving the quality and shelf life of the produce.