Table 2.

Irrigation quality parameters for 10 lake water samples, recommended guideline values, and potential effects on crops

Parameter	Sava (L1)	Gruža (L2)	Srebrno (L3)	Vlasina (L4)	Bovan (L5)	Prvonek (L6)	Ćelije (L7)	Vrutci (L8)	Garaši (L9)	Grlište (L10)	Referent values/potential effects on crops
Conductivity (μS/cm)	263	278	380	83.5	315	147.7	272	306	125.9	303	< 750—no hazard 750–1500—some hazard 1500–3000—moderate hazard 3000–7500—severe hazard (Bauder et al., 2011)
SAR	0.303	0.308	0.493	0.171	0.251	0.201	0.202	0.066	0.32	0.167	0–10—low sodium hazard 10–18—medium sodium hazard 18–26—high sodium hazard  > 26—very high sodium hazard (Wilcox, 1955)
RSC (mg/L)	1.36	2.28	3.08	0.83	2.63	1.12	2.42	2.83	0.66	2.52	< 1.25—safe 1.25–2.5—marginal  > 2.5—unsuitable (Eaton, 1950)
Cl (meq/L)	1.23	1.39	1.33	1.14	1.21	1.25	1.21	1.48	1.27	1.95	< 2—generally safe for all plants 2–4—sensitive plants usually show slight to moderate injury 4–10—moderately tolerant plants usually show slight to substantial injury  > 10—can cause severe problems (Bauder et al., 2011)
B (mg/L)	0.023	0.021	0.036	0	0.018	0.001	0.02	0.025	0.005	0.004	< 0.5—satisfactory for all crops 0.5–1.0—satisfactory for most crops 1.0–2.0—satisfactory for semi-tolerant crops 2.0–4.0—satisfactory for tolerant crops only (Bauder et al., 2011)