en fertility analyzer horticultural orchard soil pH meter The product is shipped based on the color or size of the main image of the product page. 1. Instructions for use:How to analyze soil fertility1. remove about 5 cm of topsoil; then mash the soil down to a depth of 13 cm. And clean up all organic impurities in the soil that will affect the test results, such as leaves, roots, etc.2. Soak the soil with water to make it muddy.3. Wipe the probe clean with a clean cotton or paper towel.4. Move the function key to the first position from the left.5. Insert the probe into the tested soil until the distance between the soil and the body does not exceed 2.5 cm. Wait 10 seconds, and the data can be read after the pointer is stable.6. Record the data. Remove the probe from the soil and clean the probe thoroughly.The analysis results are judged as followsTOO LITTLENitrogen less than 50 ppm us less than 4 ppmPotassium less than 50 ppmIdeal range (IDEAL)50-200 ppm4-14 ppmTOO MUCH 200 ppm 14 ppm ppm: parts per millionIf the analysis result shows "TOO LITTLE" : lackPlease use suitable liquid fertilizer for the different plants you grow to supplement nutrients for the crops. (Refer to the instructions on the fertilizer packaging bag for details)If the analysis result shows "IDEAL" : ideal the different plants you are planting, use suitable fertilizers, combined with irrigation once a month.If the analysis result shows "TOO MUCH" : excessive1. a lot, dilute and rinse excess nutrients;2. For potted plants, replant them to new soil;3. Don't apply any chemical fertilizers, but you can add manure, compost, plant residues, leaves and organic matter to the soil.How to analyze soil pH1. remove about 5 cm of the top soil to be tested; then mash the soil down to a depth of 13 cm. And clean up all organic impurities in the soil that will affect the test results, such as leaves, roots, etc.2. Soak the soil with water to make it muddy. (It is better to use rainwater or distilled water)3. Move the function key to the rightmost position.4. Wet the probe. Wipe the rightmost of the three probes with a cleaning pad.5. y insert the probe into the soil to be tested.6. Wait for 1 minute to read the data.7. the test, wipe the probe and dry it. NotePlease do not insert the probe into the soil for a long time, and do not use this device to test liquids, so as not to damage it.