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What is site-specific management of soil pH?

April 26, 2017Management pH site-specific soil

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What is site-specific management of soil pH?

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One of the goals of precision agriculture is to manage agricultural inputs according to changing local field conditions in order to increase profitability and reduce environmental waste of agricultural inputs. According to many adopters, variable rate liming is one of the profitable and popular practices in site-specific crop management. In addition to acidic field areas, having knowledge of areas with alkaline soil conditions (high pH) can be useful to avoid lime application in these areas and also aid in the selection of crop varieties tolerant to problems associated with high pH (e.g., iron chlorosis). Currently, variable rate lime prescription maps are generated based on soil samples collected manually and analyzed in laboratory conditions. These samples are usually obtained with a 2.5-acre sampling frequency (Soil Sampling for Precision Agriculture, EC00-154).