GENERAL KNOWLEDGE

Detailed explanation-1: -terrace cultivation, method of growing crops on sides of hills or mountains by planting on graduated terraces built into the slope. Though labour-intensive, the method has been employed effectively to maximize arable land area in variable terrains and to reduce soil erosion and water loss.

Detailed explanation-2: -A terrace is an earth embankment, constructed across the slope, to control runoff and minimize soil erosion. A terrace acts as an intercept to land slope, and divides the sloping land surface into horizontal or mildly sloping strips of small width.

Detailed explanation-3: -(i) Zing terracing is adopted in 3-10 per cent land slope. (ii) It is constructed in medium to deep soils in high rainfall areas. (v) To harvest the runoff from upper areas for the benefits of crops grown in lower areas.

Detailed explanation-4: -4. California Type Terrace: These are constructed by excavating the, soil in little amount at the time of each ploughing, and simultaneously making bench by pushing the soil down-hill against vegetative or mechanical barriers laid on the contour. These barriers should be placed across the slope at suitable intervals.