http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Effect of tillage systems on runoff losses of pesticides
Soil and water loss from conservation tillage systems
Effect of tillage systems on runoff losses of nutrients
Iowa State Water Resources Research Institute
98 pages in various pagings : illustrations ; 28 cm.
Effect of tillage systems on runoff losses of pesticides, by J. L. Baker, J. M. Laflen, and H. P. Johnson.--Soil and water loss from conservation tillage systems, by J. M. Laflen, and others.--Effect of tillage systems on runoff losses of nutrients, by S. G. Barisas, and others.
James L. Baker, Howard P. Johnson, and John M. Laflen.
"Supported under the Water Resources Research Act of 1964, U.S. Public Law 88-379."
Project number B-050-IA; duration: July, 1974-June, 1975.
"Office of Water Research and Technology agreement number 14-31-0001-5073."
ISWRRI (Iowa State Water Resources Research Institute) ; no. 71