Table 1.

The ionic concentration of Cu, Ca, Si and P in Cu-BGC extracts

Ionic Con. (mg/L)	0 (CTR)	Powders extracts concentrations (ppm)
		BGC				Cu-BGC
		0.781	3.125	12.5	25	0.781	3.125	12.5	25
Cu	0.00±0.00	0.00±0.00	0.00±0.00	0.00±0.00	0.00±0.00	0.50±0.01	2.00±0.05	8.00±0.19	16.02±0.39
Ca	69.31±3.03	69.73±3.05	71.00±3.09	76.05±3.27	82.79±3.52	69.21±2.11	68.91±3.01	67.72±3.00	66.13±2.89
Si	0.24±0.09	0.75±0.07	2.29±0.02	8.45±0.22	16.67±0.52	0.70±0.07	2.09±0.03	7.65±0.16	15.07±0.41
P	26.06±1.69	25.96±1.68	25.67±1.66	24.50±1.58	22.94±1.47	25.98±1.69	25.75±1.67	24.85±1.60	23.64±1.51