Misuratore di acidità del suolo 2 in 1 giardino semina piante rilevatore di crescita

And clean up all organic impurities in the soil that will affect the test results, such as leaves, roots, etc. How to Analyze Soil Fertility. Insert the probe into the soil to be tested until the distance between the soil and the fuselage does not exceed 2.5 cm.

eBay