Producers using site‐specific crop management (SSCM) have a need for strategies to delineate
areas within fields to which management can be tailored. These areas are often referred …

Understanding the relationships between yield and soil properties and topographic
characteristics is of criticalimportance in precision agriculture. A necessary first step is to identify …

Nitrogen available to support corn (Zea mays L.) production can be highly variable within
fields. Canopy reflectance sensing for assessing crop N health has been proposed as a …

Yield maps are a key component of precision agriculture, due to their usefulness in both
development and evaluation of precision management strategies. The value of these yield maps …

Optimal N fertilizer rate for corn (Zea mays L.) and other crops can vary substantially within
and among fields. Current N management practices do not address this variability. Crop …

Claypan soils have dense, high‐clay content layer and cover large areas of the Midwest.
Variability in the claypan properties must be considered in development of site‐specific nutrient …

Apparent soil electrical conductivity (EC a ), a widely used proximal soil sensing technology,
is related to several important soil properties, including salinity, clay content, and bulk …

Yield maps provide important information for developing and evaluating precision management
strategies. The high-quality yield maps needed for decision-making require screening …

Soil textural variability diminishes the effectiveness of conventional irrigation management.
Variable rate irrigation (VRI) can address soil variability; however, users need guidance to …

Maps of apparent electrical conductivity ( EC a ) of the soil profile are widely used in precision
agriculture. A number of EC a sensors are commercially available, each with a unique …