Soil Chemical Analysis Method (pH & EC Checking Method)

Our standard method is 1:5 weight to weight, however, since the dry cocopeat is difficult to agitate due to water absorption, the 1:20 weight to weight method will be used for the actual test instead.

Its method is to gain soil extract after mixing soil and desalted water [weight ratio 1 (Soil):20(Water)] *This is not “volume to volume” but “weight to weight”.

1. How to make an extraction liquid

1. Put 600g(ml) of desalted water into a wide-mouth bottle.
2. Put 30g of coco peat before compression with no moisture condition into another beaker.
3. Put 30g of coco peat into the bottle of water mentioned in 1.
4. Shake the bottle for 30 minutes by hand statically (Shake 1 time per 1 second) or using an agitation machine.
5. Filter clear supernatant liquid by filter paper and use the filtered liquid for analysis.

2. – ① Measuring EC (SPEC: below 1.0mS/cm)

Measure EC by the device while using filtered liquid.

Since the value by the 1:20 weight-to-weight method is lower, the report must be after multiplying 4 times from the value with mS/cm unit.

2. – ② Measuring pH (SPEC: 6.0-7.0)

Measure pH by the device while using filtered liquid.