HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Abstract Full Text Free Full Text (PDF) Free Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in ISI Web of Science Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via ISI Web of Science (18) Citing Articles via Google Scholar Google Scholar Articles by Zhao, S. L. Articles by Moncrief, J. F. Search for Related Content PubMed PubMed Citation Articles by Zhao, S. L. Articles by Moncrief, J. F. Agricola Articles by Zhao, S. L. Articles by Moncrief, J. F. Related Collections Surface Water Quality Maize Nutrient Management Water Pollution

Tillage and Nutrient Source Effects on Surface and Subsurface Water Quality at Corn Planting

^a Resource 21, 7257 S. Tucson Way, Suite 200, Englewood, CO 80112
^b Dep. of Soil Water, and Climate, 1991 Upper Buford Circle, Univ. of Minnesota, St. Paul, MN 55108
^c USDA-ARS, Dep. of Crop and Soil Sciences, Washington State Univ., Pullman, WA 99164

View larger version (41K): [in a new window]   Fig. 1. Plot layout of the experiment on tillage and nutrient source effect on water quality of surface runoff and subsurface tile flow at the Southwest Research and Outreach Center, Lamberton, MN.

View larger version (22K): [in a new window]   Fig. 2. An example of the variation in cumulative flow and flow rate through tile lines as a function of time for moldboard plow with manure (MP*M), moldboard plow with urea (MP*U), ridge tillage with manure (RT*M), and ridge tillage with urea (RT*U) treatments on a Webster clay loam soil.

View larger version (17K): [in a new window]   Fig. 3. An example of the variation in sediment concentration in tile line flow as a function of time for moldboard plow with manure (MP*M), moldboard plow with urea (MP*U), ridge tillage with manure (RT*M), and ridge tillage with urea (RT*U) treatments on a Webster clay loam soil.

View larger version (20K): [in a new window]   Fig. 4. An example of the variation in NH+4–N and NO-3–N concentration in tile line flow as a function of time for moldboard plow with manure (MP*M), moldboard plow with urea (MP*U), ridge tillage with manure (RT*M), and ridge tillage with urea (RT*U) treatments on a Webster clay loam soil.