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A crop farmer obtained data from a cropping field that describes the nature of the soil - NSC Agricultural Management Practices - Question 2 - 2017 - Paper 1
Question 2
A crop farmer obtained data from a cropping field that describes the nature of the soil. The analysis indicates that if irrigation is applied, runoff will occur. 2.... show full transcript
Worked Solution & Example Answer:A crop farmer obtained data from a cropping field that describes the nature of the soil - NSC Agricultural Management Practices - Question 2 - 2017 - Paper 1
Step 1
2.1.1 Name THREE basic soil requirements for irrigation purposes.
Answer
The three basic soil requirements for irrigation purposes are:
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Adequate Infiltration/Absorption: The soil must allow water to easily infiltrate and be absorbed by the root systems of plants.
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Internal Drainage/Sufficient Soil Depth: Adequate depth is necessary to prevent waterlogging and to ensure that crops have access to sufficient moisture without excess saturation.
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Water Holding Capacity: The soil must have good water retention capabilities to sustain the plants through dry periods.
Step 2
2.1.2 Briefly explain THREE methods a farmer can use to reduce the water runoff.
Answer
To reduce water runoff, a farmer can implement the following methods:
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Develop Stable Waterways: Creating stabilized waterways help direct runoff and reduce erosion while improving water infiltration.
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Apply Contour Plowing: Plowing along the contour lines of the field can slow down water movement across the land, allowing more water to soak into the soil.
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Develop Contour Ridges/Retaining Barriers: Constructing ridges or barriers can help retain water on the soil surface, promoting better absorption and reducing the speed of runoff.