I want to design a soil testing device which measures the nutrient values. so please can anyone help me out of this by suggesting some sensors which can measure the nutrient values of soil directly.
I doubt they exist at all. Even for watery solutions it's only a few ions that can be measured directly.
For added fun: nitrogen comes in nitrate, nitrite, ammonium, and bonded in organic matter. The other elements similarly. That makes it so hard to measure.
thanks for replay but is there any way to make it possible.
Not with current technology.
Do a search on this forum. You're far from the first to ask the exact same thing.
ok thank you
is there any way to make it possible.
Take your soil samples to the nearest soil testing service. They are located in most parts of the world and usually have well equipped laboratories.