Why haven't more regulations been put in place for agriculture in terms of water pollution?

The rules and laws for the farmers for doing agriculture and prevent water pollution are less because the regulatory laws if followed by the farmers will make impossible for farming and trap them in a low-income and productivity of the crops.

Explanation:

Agriculture leads to water pollution due to the excessive use of chemical fertilizers and pesticides. These chemicals seeps from the soil to the water bodies thereby causing water pollution. Water pollution is harmful for the aquatic plants and animals and also affects human health.

There are rules and laws for the farmers for doing agriculture and prevent water pollution but they are less because the regulatory laws if followed by the farmers will make impossible for farming and trap of the crops.