Question

The chief advantages of strip cropping are:
A. Physical protection against blowing, provided by the vegetation.
B. Soil erosion is limited to a distance equal to the length of the strip.
C. Greater conservation of moisture.
D. The possibility of the earliest harvest.
Choose the correct answer from the options given below:

• A. A, B and D only
• B. A, B and C only
• C. A, B, C and D
• D. A, C and D only

Hint:

Strip cropping is a conservation practice with three main goals: reducing soil erosion from wind, reducing erosion from water, and conserving soil moisture. Any advantage related to these three points is likely correct.

Answer 1

The Correct Option is B

Step 1: Analyze each statement regarding the advantages of strip cropping.
- Statement A: Strip cropping involves planting erosion-resistant crops in strips alternating with erosion-susceptible crops. The taller, dense crops act as physical barriers against wind, thus providing protection. This is a key advantage.
- Statement B: When soil erodes from one strip, it is often trapped in the adjacent, more densely vegetated strip. This effectively limits the distance of soil movement. This statement is incorrect as written; erosion is limited by the width of the strip, not the length. However, the intent is likely that soil movement is checked within a short distance, which is true. Assuming the intent, this is an advantage.
- Statement C: By slowing down wind and water runoff, strip cropping increases infiltration and reduces evaporation, leading to greater conservation of soil moisture. This is a primary benefit.
- Statement D: The timing of harvest is determined by the crop type and planting date, not by the practice of strip cropping itself. This is not a direct advantage of the technique.
Step 2: Conclude the correct combination. Statements A, B (with the interpretation of its intent), and C are all recognized advantages of strip cropping. Statement D is not. Therefore, the combination of A, B, and C is the correct choice.