… 1995a; Brevik and Fenton 2003), including interest from the precision agriculture community
(Jaynes 1995; Fritz et al. 1999; Brevik et al. 2000). Many published studies attempt to relate …

Farmers will be better able to implement site‐specific management practices when they
understand the causes of spatial and temporal variability of corn (Zea mays L.) and soybean […

From 1983 to 1989 an erosion-productivity study was conducted in Iowa. The primary objective
of this project was to determine the effects of accelerated erosion and its interactions with …

A Mollisol catena located in Boone County, Iowa, USA was used to investigate the influence
of soil water content, clay content, temperature and carbonate mineral (calcite and dolomite) …

… Brevik, EC and Fenton, TE 2002. The relative influence of soil water content, clay,
temperature, and carbonate minerals on soil electrical conductivity readings taken with an EM-38 …

The layer charge of five smectites, one vermiculitic material, and five reduced-charge clays
was determined by the alkylammonium and structural formula methods. The two sets of …

… Steinwand, AL and Fenton, TE 1995. Landscape evolution and shallow groundwater hydrology
… Steinwand, AL, Karlen, DL and Fenton, TE 1996. An evaluation of soil survey crop yield …

The Morrow Plots, considered the oldest continuous study in the United States, are at the
University of Illinois. They were established in 1876 to study the effects of crop rotations and …

… crops, or pasture (eg, Wert and Thomas, 46; Assaeed et al., 2; Sveistrup and Haraldsen, 36);
the effect of compaction on soil apparent electrical conductivity readings (Brevik and Fenton…

Publisher Summary Mollisols are mineral soils that have a mollic epipedon (dark-colored
surface horizon with greater than 50 % base saturation as determined by the ammonium-…