Losses of fertilizers and pesticides from claypan soils
|Main Author:||Smith, George E.|
|Other Authors:||Whitaker, Fred D., Heinemann, Herman G., United States. Environmental Protection Agency. Office of Research and Development.|
For sale by the Supt. of Docs., U.S. Govt. Print. Off.,
vii,75 pages : illustrations ; 27 cm.
Research reporting series. Environmental protection technology ;