The following photos below show the laboratory procedures carried out to obtaining the NPK values, ultimately leading for the fertilizer plan.
Soil sampling Collection |
Soil Sampling Collection |
The soil is crushed and refined |
The soil is sieved and refined |
The refined soil sample is then sorted in a labelled sample bottle |
Each sample is then mixed witha a reactant. This is carried out according to each specific test |
The sample is then placed in a shaker, where it is continually mixed for approximately 45 minutes |
The sample is then allowed to be filtered out |
The filtrate (filtered soil sample) is then mixed with its prospective reactant (this is carried out according to the specific test) |
Once the sample batch is reacted, the solution is then allowed to stand for approximately 15 to 30 minutes where it is then taken in for testing |
Samples tested for Potassium (K) are tested via the Photo-Electric Flame Photometer |
Samples tested for Nitrates (N) are tested via a Nitrates Probe |
Samples tested for Phosphates (P) are tested via a UV-Spectrophotometer |
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