The correct answer is: d) All of the above
Conservation agriculture is a system of farming practices that seeks to improve the productivity and sustainability of agricultural land. It does this by minimizing soil disturbance, using cover crops, and rotating crops.
Minimum soil disturbance is important because it helps to protect the soil from erosion and compaction. When the soil is disturbed, it can be easily washed away by rain or wind, or compacted by heavy machinery. This can make it difficult for plants to grow and can also lead to the loss of nutrients and organic matter.
Crop rotation is the practice of growing different crops in the same field each year. This helps to prevent the build-up of pests and diseases, and also helps to improve the soil’s fertility. When different crops are grown, they take up different nutrients from the soil. This helps to ensure that the soil does not become depleted of any one nutrient.
Cover cropping is the practice of planting a cover crop between cash crops. Cover crops help to protect the soil from erosion, improve its fertility, and suppress weeds. They also help to improve the soil’s water retention and drainage.
All of these practices help to improve the sustainability of agricultural land. They help to protect the soil, improve its fertility, and reduce the use of pesticides and fertilizers.