Nutrient leaching is the process where essential minerals and nutrients in the soil are washed away by water, often due to rainfall or irrigation. This can lead to a decrease in soil fertility, making it harder for plants to grow and thrive. Nutrient leaching is particularly common in sandy soils, which have larger particles and less ability to hold onto nutrients. When nutrients are leached away, they can enter nearby water bodies, potentially causing pollution and harmful algal blooms. This can affect ecosystems and water quality, impacting organisms like fish and aquatic plants. Managing soil health and using appropriate farming practices can help reduce nutrient leaching.