Ionic relationships between macronutrients and sodium in parsley under nutrient solutions prepared with brackish water

HIGHLIGHTS: Use of water with low electrical conductivity in the preparation of nutrient solutions mitigates the effect of salinity. Increases in ionic concentration show differences in the efficiency of macronutrient use caused by the cationic natures. Concentration × cationic nature affects ionic relationships differently, impacting the plant diffe-rently.