How to analyze soil fertility?
1. Remove the topsoil about 5 cm first; then smash the soil down to 13 cm deep. And clean up all the organic impurities in the soil that will affect the test results, such as leaves, roots and so on.
2. Soak the soil with water and make it muddy. (It is best to use rain or distilled water).
3. Wipe the probe with a clean cotton or paper towel.
4. Turn the function button to the first gear from the left.
5. Insert the probe into the soil to be tested until the soil is no more than 2.5 cm from the fuselage. Wait up to 10 seconds, and the data can be read after the pointer is stable.
6. Record the data. Remove the probe from the soil and thoroughly clean the probe.<\/p>\n
The judgment criteria of the analysis results are as follows:
Lack of (TOO LITTLE)
Nitrogen less than 50 ppm
Phosphorus less than 4 ppm
Potassium less than 50 ppm<\/p>\n
Ideal range (IDEAL)
50-200 ppm
4-14 ppm
50-200 ppm<\/p>\n
Excess (TOO MUCH)
Greater than 200 ppm
Greater than 14 ppm
Greater than 200 ppm
Unit ppm: parts per million
If the analysis shows “TOO LITTLE” means: lack
Please use liquid fertilizer for the different plants you plant to supplement the crop with nutrients. (Refer to the instructions on the fertilizer bag)<\/p>\n
If the analysis results show “IDEAL” means: ideal
According to the different plants you plant, use fertilizers and apply them once a month in combination with irrigation.<\/p>\n
If the analysis results show “TOO MUCH” means: excess:
1. Drain a large amount of water to dilute excess nutrients;
2. For potted plants, they should be replanted into new soil;
3. Do not apply any fertilizer, but add feces, compost, plant residues, leaves and other organic matter to the soil. <\/p>\n
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