i am now evaluating physicochemical analysis of soil by using standard methods so when i get result i want compare my result to the standards so if anyone have standards in physicochemical parametres of soil pls i need your help?
Total N in mineral soil is considered high, moderate, or low,
when the TN% is >0.5; 0.1–0.5; and
As well any standard book for soil analysis you can find the standards of soil properties
If you are doing analysis you will need a reference sample (known composition) so you can check the quality of your results. Look up the WEPAL sample exchange and purchase a previously tested sample from their stock, or likewise from Global Proficiency. There are other providers but you will find that meterials of certified composition, CRMs, are very expensive.
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