Table 1.

Physicochemical properties of soil and water with and without NZCF.

Parameter	Blank soil	Tap water	Soil with NZCF			Water with NZCF
			24 h	7 days	14 days	24h	7 days	14 days
pH	8.9	7.9	8.3	7.8	7.5	7.2	7.0	7.0
Conductivity (μs/cm)	675	568	827	720	756	590	582	605
TDS (mg/l)	315	230	374	380	378	330	378	350
Ca2+ (mg/l)	105.8	80.6	109.0	126.6	138.3	99.2	101.3	105.3
Mg2+ (mg/l)	0	0	44.7	45.7	47.9	37.9	53.48	60.4
${{\text{PO}}_4}^{3-}$ (mg/l)	4.84	0.25	5.45	5.95	7.23	0.43	0.52	0.73
${{\text{NO}}_2}^{-}$ (mg/l)	0.01	0.08	0.5	1.58	1.60	0.2	0.8	1.24