Question

Planting geometry that ensures a uniform incidence of solar radiation is:

• A. Square planting
• B. Rectangular planting
• C. Mixed planting
• D. Random planting

Hint:

Think about which spacing pattern keeps row distance and plant distance equal in every direction.

Answer 1

The Correct Option is A

This question checks whether the student knows how row geometry affects light distribution over a crop stand.

1. Square planting: Row spacing and plant spacing are equal, so each plant sits at the centre of an identical square of ground. Sunlight falls on the canopy from every direction the same way, giving uniform incidence across the field.
2. Rectangular planting: Row spacing is larger than plant spacing, so shading is heavier along the row than across it. Light interception becomes direction dependent, not uniform.
3. Mixed planting: Two crops of different heights share the field, and the taller one always casts shade on the shorter one from a fixed side, breaking uniformity.
4. Random planting: There is no set spacing pattern, so the amount of shading each plant receives varies from plant to plant with no consistency at all.

Because square planting keeps equal distance between plants in all directions, it is the geometry that spreads solar radiation most evenly over the crop.

Let's summarize:

• Equal row and plant spacing (square planting) gives symmetric canopy development.
• Any geometry with unequal spacing or mixed crop heights creates direction based shading.

So the correct answer is square planting.