How can we conserve the soil? [Briefly explain any five methods].
pls its a bit urgent
Answers
Answer:
Contour ploughing.
Terrace farming.
Keyline design.
Perimeter runoff control.
Windbreaks.
Cover crops/crop rotation.
Soil-conservation farming.
Salinity management.
Contour ploughing
Contour ploughing orients furrows fellows following the contour lines of the farmed area. Furrows move left and right to maintain a constant altitude, which reduces runoff.
Terrace farming
Terracing is the practice of creating nearly level areas in a hillside area. The terraces form a series of steps, each at a higher level than the previous. Terraces are protected from erosion by other soil barriers. Terraced farming is more common on small farms
Windbreaks
Windbreaks are sufficiently dense rows of trees at the windward exposure of an agricultural field subject to wind erosion. Evergreen species provide year-round protection; however, as long as foliage is present in the seasons of bare soil surfaces, the effect of deciduous trees may be adequate.
Perimeter runoff control
Tree, shrubs and ground-cover are effective perimeter treatment for soil erosion prevention, by impeding surface flows. A special form of this perimeter or inter-row treatment is the use of a "grass way" that both channels and dissipates runoff through surface friction, impeding surface runoff and encouraging infiltration of the slowed surface water.
Keyline design
Keyline design is an enhancement of contour farming, where the total watershed properties are taken into account in forming the contour lines.