Crop rotation has been used for thousands of years. During the 1950s and early 1960s, it
was felt that synthetic fertilizers and pesticides could forever replace crop rotation without loss …

Analysis of yield variability is an important issue in agricultural research, and topographical
land features are among the most important yield‐affecting factors. The objective of this study …

Apparent electrical conductivity (EC a ) of the soil profile can be used as an indirect indicator
of a number of soil physical and chemical properties. Commercially available EC a sensors …

Apparent profile soil electrical conductivity (EC a ) can be an indirect indicator of a number of
soil physical and chemical properties. Commercially available EC a sensors can be used to …

The use of winter cover crops (WCC) such as hairy vetch (Vicia villosa Roth) and cereal rye (Secale
cereale L.), in a corn (Zea mays L.)–soybean [Glycine max (L.) Merr.] rotation …

The choice of an optimal interpolation technique for estimating soil properties at unsampled
locations is an important issue in site‐specific management. The objective of this study was …

The field study investigated the relationship of Minolta SPAD 502 (SPAD) readings to
applied nitrogen (N) fertilizer rate, corn (Zea mays L.) yield, and leaf N concentration. The …

Several long‐term studies suggest that no‐till (NT) practices do not increase soil organic
matter (SOM) sequestration in all situations. We evaluated the interaction of tillage and soil …

Based on quadratic response models, the University of Illinois recommends 22 kg fertilizer
N Mg −1 corn (Zea mays L.) grain yield, with adjustments for cropping history, manure, and …

Corn (Zea mays L.) grown in an equidistant plant‐spacing pattern (EPS) often yields more
grain per unit area of land than that grown in conventional plant‐spacing patterns (CPS). The …