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| I have two samples #1 was psnt 116 ppm and 4.4 ppm NH4. #2 psnt was 61 ppm and 13ppm NH4 .
I rushed taking these samples, packaged them, and sent them priority mail asap . I forgot that you are supposed to let samples dry out before packaging . The psnt samples are high, so im wondering how accurate this test was . How critical is it to let the soil samples dry out ? Any thoughts on the NH4 ppm numbers? | |
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PSNT and Ammonium test result
