The correct answer is a) Soil nutrient depletion.
Continuous cultivation without proper crop rotation can lead to soil nutrient depletion because the same crops are grown in the same area year after year. This can deplete the soil of nutrients that are essential for plant growth, such as nitrogen, phosphorus, and potassium. Over time, this can lead to a decline in crop yields and even crop failure.
Soil erosion is the process of soil being carried away by wind or water. It can be caused by a number of factors, including deforestation, overgrazing, and poor farming practices. Soil erosion can lead to a loss of topsoil, which is the most fertile layer of soil. It can also lead to a decline in crop yields and even crop failure.
Improved soil structure is the result of a number of factors, including the addition of organic matter, the use of cover crops,
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