Filters: partyWithName: Andrew Sharpley (X)
5 results (224ms)
Filters
Date Range
Extensions Types Contacts
Categories Tag Types Tag Schemes |
Categories: Publication;
Types: Citation;
Tags: Agricultural phosphorus losses,
Agriculture,
Best management practices,
Crops,
EE 804 Chemical Products Generally; EE 821 Agricultural Equi,
Categories: Publication;
Types: Citation;
Tags: Agronomy,
Computer simulation,
Crops,
Cultivation,
EE 453.1 Water Pollution Sources; EE 821.5 Agricultural Wast,
![]() Over the past 40 years, antipollution laws have greatly reduced discharges of toxic substances into our coastal waters. This effort, however, has focused largely on point-source pollution of industrial and municipal effluent. No comparable effort has been made to restrict the input of nitrogen (N) from municipal effluent, nor to control the flows of N and phosphorus (P) that enter waterways from dispersed or nonpoint sources such as agricultural and urban runoff or as airborne pollutants. As a result, inputs of nonpoint pollutants, particularly N, have increased dramatically. Nonpoint pollution from N and P now represents the largest pollution problem facing the vital coastal waters of the United States.
|