Light meter: Ensure the sensor is not shaded by your body, Take readings at the same time of day, pH and moisture meters: Make sure the probe is dry and clean before use, Insert the probe to the same depth at each sample site, Thermometer: Ensure your hand is not warming the bulb, Allow sufficient time before taking a reading,

L6 Avoiding sampling errors

Табло

Визуален стил

Опции

Шаблон за превключване

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