Answer
May 26, 2022 - 12:01 AM
Hi there.
Yes, the test produces a colour which varies depending on levels of NPK, the colour is compared to a printed colour chart to translate the colour hue into an N, P or K amount.
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May 26, 2022 - 12:01 AM
Hi there.
Yes, the test produces a colour which varies depending on levels of NPK, the colour is compared to a printed colour chart to translate the colour hue into an N, P or K amount.