OpenFields

Soil sensors for nitrogen availability

A report on work carried out to produce robust sensors that can be used to continuously monitor available soil water Nitrogen in the field.

Year of Publication2005

The project successfully developed new sensors that allow direct continuous monitoring of nitrate and ammonium in soil solution. The information provided by these sensors is a direct measure of the N available to a crop and thus can be used to support fertiliser application decisions. They allow spatial and temporal mapping of N in soils, providing a measure of heterogeneity that can be used to target fertiliser applications in high-precision agriculture.The sensors can also be used for other aspects of environmental monitoring. Deployment of sensors in drainage waters and streams would provide a measure of leaching that could be correlated with weather and soil readings to allow modelling of the conditions under which losses to the environment are likely to occur.

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Organisation Logo for Defra  -  Department for Environment Food and Rural Affairs

The UK government department responsible for policy and regulations on the environment, food and rural affairs.

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This is a brief summary of an item in the OpenFields Library. This free online library contains items of interest to practitioners and researchers in the agricultural and landbased industries.