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humidity & growth days
NPK — read as low
As a general guide on this meter:
urban vegetable growers
NPK Soil Tester Meter for Plants | Yieryi Garden watering controller humidity & growth daysAn NPK soil tester reads the three nutrients plants need mostnitrogen (N), phosphorus (P), and potassium (K)plus soil temperature. This one gives you those readings in seconds from a dual needle probe, so you can tell whether it is time to feed or hold off, without mailing a sample to a lab. Read it as a trend tool. The N, P, and K figures are a directional reference, not a lab measurementuseful for spotting when a nutrient runs low and tracking how
US$ 34.00
US$ 34.00
US$ 34.00
US$ 34.00
US$ 34.00
US$ 34.00
US$ 34.00
