P roble m Agricultural areas have the potential to pollute water in many ways. Runoff from farms carries sediment, nutrients, salts, pesticides, and fertilizers. Both groundwater and surface water can be contaminated with these pollutants. Organic farming avoids the use of pesticides and fertilizers.
Efficient irrigation can slow salt buildup in soil and drainage water.
Avoiding large concentrations of animals can reduce nutrient pollution, and their waste can be used as fertilizer for crops. Certain cropping methods can reduce the erosion of sediment from the land. As a result, pollution of the lake with pesticides, fertilizers, and petroleum waste has grown. They have been severely affected by decades of nutrient enrichment from phosphates and nitrates. This led to the growth of algae, loss of water plants and a serious decline in the wildlife interest of the broad.