TABLE 2.

Elemental composition of the plants considered in this work.

Plant name	Plant part	nH	nO	nN	nP	nS	nK	nMg	nCa	nAl	nSi	nMn	nFe	nCl	Mbio (g/C-mol)
Gossypium hirsutum L.	Stalk	1.64	0.869	0.018		0.002									27.87
Oryza sativa L.	Straw	1.60	0.807	0.0044		0.0025									26.69
Phaseolus vulgaris L.	Waste 1	1.81	0.81	0.15											28.80
	Waste 2	1.55	0.904	0.028		0.002									30.56
Saccharum spp. L.	Bagasse	1.54	0.8320	0.012										0.00099	27.11
Zea mays L.	Leaves	1.69	0.80	0.027	0.0019	0.0022	0.0110	0.0025	0.0034	0.0008	0.0268	0.00023	0.0004	0.0018	29.10
	Stems	1.58	0.74	0.016	0.0008	0.0013	0.0085	0.0018	0.0011	0.0001	0.0040	0.00008	0.0003	0.0017	26.98
	Grain	1.85	0.76	0.041	0.0029	0.0012	0.0029	0.0022	0.0002	0.0002	0.0002	0.00018	0.0002	0.0002	26.86
	Roots	1.61	0.77	0.026	0.0011	0.0022	0.0035	0.0020	0.0043	0.0103	0.0449	0.00034	0.0026	0.0009	28.39
	Cobs 1	1.66	0.75	0.026	0.0008	0.0002	0.0031	0.0012	0.0001	0.0005	0.0124	0.00015	0.0001	0.0009	26.25
	Average	1.71	0.77	0.029	0.0018	0.0015	0.0065	0.0021	0.0016	0.0011	0.0125	0.00018	0.0004	0.0011	27.53
	Stalk	1.56	0.8653	0.030										0.00834	28.16
	Cobs 2	1.66	0.8556	0.018										0.0021	27.73
	Ground stover	1.68	0.8080	0.0088		0.0010									26.79
	Stalk shell	1.56	0.7170	0.0007		0.0008									25.09
	Stalk pith	1.58	0.8248	0.0023		0.0013									26.88
	Cob shell	1.58	0.7389	0.0018		0.0006									25.47
	Whole stover	1.54	0.7144	0.0025		0.0012									25.05

The elemental composition is reported in the form of unit carbon formulas (UCFs or empirical formulas), with the general form C_nCH_nHO_nON_nNP_nPS_nSK_nKMg_nMgCa_nCaAl_nAlSi_nSiMn_nMnFe_nFeCl_nCl. Since all elements are given per mole of carbon, n_C = 1. For example, the UCF of the sample Saccharurn spp. bagasse is CH_1.54O_0.8320N_0.012 (Pineda-Insuasti et al., 2014).