Precision Soil Sampling

Soil sampling is an important step in site-specific crop management as soil variability is often directly correlated to variations in yield.  Traditional soil sampling consists of collecting and compositing random samples from across a field resulting in a uniform application of fertilizer and lime.  This broad application often leads to an over, or under, application of plant nutrients.  Precision soil sampling is accomplished by geo-referencing soil samples from the area which the sample was taken using a Global Positioning System (GPS).  This allows growers to manage field variability by optimizing nutrient and lime inputs on a site-specific basis.  Precision soil sampling is accomplished through either zone or grid sampling methods. 

Publications

• Introduction to Prescription Maps for Variable-Rate Application

• Precision Soil Sampling For Alabama Farms

• Soil Electrical Conductivity

Presentations

• Precision Soil Sampling

• Overview of Precision Ag Applications for EQIP

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