This document explains the basics of coil cation exchange capacity (C.E.C.).
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Several factors can influence irregularities in soil analysis. Depth variations, combining samples with different soil areas or different historical liming are just a few of the factors.READ MORE
When sampling sludge, extra precautions should be taken to ensure safe handling and accurate sampling.READ MORE
Please read the attached document – plant Parasitic Nematode Testing USDA International Permit for Live PestsREAD MORE