I have no guide line about soil testing . my requirement is to know the actual concentration of soil for testing Electrical conductivity of soil.
i got the following result .
2gm soil / 100ml= EC 167 micro simens
4gm soil / 100ml= EC 296 micro simens
6gm soil / 100ml= EC 464 micro simens
8gm soil / 100ml= EC 621 micro simens
10gm soil / 100ml= EC 716 micro simens
My question is what is requirement amount of soil for testing EC ?.