A farmer wants to properly manage her soil to prevent a situation like the Dust Bowl. What is the best way to manage the soil

water the soil frequently
water the soil frequently

frequently dig the soil to get rid of unwanted plants
frequently dig the soil to get rid of unwanted plants

remove humus from the soil
remove humus from the soil

allow plants such as grass to root in it

allow plants such as grass to root in it

practice crop rotation and cover cropping to avoid depleting nutrients and reduce erosion

add organic matter like compost or manure to improve soil health and structure

avoid over-tilling the soil to prevent erosion and loss of soil structure

implement erosion control measures such as contour plowing and planting windbreaks