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. 2021 May 31;12:671868. doi: 10.3389/fpls.2021.671868

TABLE 3.

Formulas giving stoichiometric coefficients for the plant growth reactions.

Substance Stoichiometric coefficient
CO2 (g) –nC
H2O (l) –½ (nH + nK + 2nMg + 2nCa + 3nAl + 2nMn + 3nFe – 3nN – 3nP - 2nS – 4nSi – nCl)
NH4+ (aq) –nN
H2PO4 (aq) –nP
SO42– (aq) –nS
K+ (aq) –nK
Mg2+ (aq) –nMg
Ca2+ (aq) –nCa
Al3+ (aq) –nAl
Si(OH)4 (s) –nSi
Mn2+ (aq) –nMn
Fe3+ (aq) –nFe
Cl (aq) –nCl
O2 (g) 14 (2nO + 3nN + nCl – nH – 5nP – 6nS – nK – 2nMg – 2nCa – 3nAl – 4nSi – 2nMn – 3nFe – 4nC)
H+ (aq) –(nP + 2nS + nCl – nN – nK – 2nMg – 2Ca – 3nAl – 2nMn – 3nFe)
Bio +1

The table gives stoichiometric coefficients for growth reactions (Equation 11), of the form CO2 (g) + H2O (l) + NH4+ (aq) + H2PO4 (aq) + SO42– (aq) + K+ (aq) + Mg2+ (aq) + Ca2+ (aq) + Al3+ (aq) + Si(OH)4 (s) + Mn2+ (aq) + Fe3+ (aq) + Cl (aq) → (Bio) + O2 (g) + H+ (aq). The product “(Bio)” denotes live matter (CnCHnHOnONnNPnPSnSKnKMgnMgCanCaAlnAlSinSiMnnMnFenFeClnCl). The calculated stoichiometric coefficient values are negative for the reactants and positive for the products.