Soil Conservation Techniques Quiz

What is the main principle of 'no-tillage'?

• To reduce the amount of water in the soil

• To increase the use of fossil fuels

• To use excessive amounts of fertilizer

• To keep bare soil protected with living vegetation

What is the purpose of contour farming?

• To reduce the amount of soil moisture retention

• To use more fuel and power for tractors

• To increase the velocity of water flow

• To prevent formation of rills and gullies

What is the main purpose of strip cropping?

• To decrease the soil compaction

• To replenish soil with essential nutrients

• To increase the risk of insects and disease problems

• To control erosion by reducing the velocity of wind and water

What is the function of a windbreak in soil conservation?

• To reduce or eliminate the velocity of the wind and reduce wind erosion

• To increase the velocity of the wind and cause erosion

• To reduce erosive action on the slope

• To trap sediment and decrease water pollution

What is the benefit of crop rotation in soil conservation?

• Reduces the risk of insects and disease problems

• Increases the dependency on pesticides

• Decrease the velocity of the wind that causes erosion

• Decrease the soil erosion on the slope

Which soil conservation method is suitable to filter sediment runoff into the river and hold the soil in place?

• Buffer strips

• Crop rotation

• Contour farming

• Windbreaker

What is the function of a grass waterway in soil conservation?

• To carry surface runoff across land without causing erosion

• To increase the erosive action on the soil

• To alter the natural course of water

• To reduce the soil moisture retention

All these methods are suitable to control erosion on steep terrain and slope EXCEPT:

• Strip cropping

• Contour farming

• Terracing

• Windbreaks

What is the benefit of using natural fertilizers in soil conservation?

• They decrease the erosive action on soil slope

• They decrease the soil productivity

• They provide soil with more moisture

• They provide the soil with organic matter

All the statements are TRUE about integrated pest management (IPM) EXCEPT...

• The main crop is rotated to control the number of pest

• IPM involve crop rotation

• Reduce the excessive use of chemical pesticide

• Reduce crop pest by using pesticide