Soil nutrient sensors?

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No title

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Jaime Cuauhtemoc Negrete

Check this links maybe help you

Article On-the-go soil sensor for precision agriculture

Article Proximal Soil Sensing: An Effective Approach for Soil Measur...

Mahesh Rao

As far as I understand there is no easy way to measure all the micro-nutrients through the sensors in the field. Some of this, N,P,K, can be measured but bit tedious.

Actually we are also looking for such a sensor so the "soil testing" becomes much easier.

Paul Milham

The short answer is no. Intensively calibrated IR is useful but will not give you all you want.