NXCA - What does NXCA stand for? The Free Dictionary
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Non-ratio expressions such as NxCa empirically designed to account for nutrient dilution in different directions over time (Walworth and Sumner, 1987) distort the Beaufils (1973) dual ratio balance approach since the sum of the nutrient indexes is no more equal to zero.
The NxCa product mitigating nutrient dilution (Walworth and Sumner, 1987) appears in the binary partition between anions and cations as [N, S, P] vs.