Correct option is B
Contour farming is effective for slopes between 2% and 7%, reducing soil erosion and improving water retention.
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Contour farming is recommended for lands with the slope range of:
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A surface horizon produced by continuous cropping is known as
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Decomposition of algae and macrophytes
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Soil pH is measured by making soil : water suspension in the ratio of
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Figure is used to identify which of the following soils?
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Which instrument is used for determination of K content in soil?
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A surface horizon produced by continuous cropping is known as
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Decomposition of algae and macrophytes
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Soil pH is measured by making soil : water suspension in the ratio of
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Figure is used to identify which of the following soils?
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