Asian Journal of Plant Sciences1682-39741812-5697Asian Network for Scientific Information10.3923/ajps.2002.51.52Nazir Hussain R. A. Jakhar M. Tahir R. Noreen N. M. Hassan Fakhar Mujeeb 1200211A pot experiment was conducted to investigate the impact of different Ca/Mg ratios (1:1, 2:1, 3:1 1:2, 1:3 1:4 in addition to canal water as standard) on soil properties and maize and wheat yields. A normal soil was taken in lysimeters, these crops were grown in sequence and irrigated with synthetic water of variable Ca/Mg ratios consistently for three years. It was observed that fodder yield of maize and grain yield of wheat was significantly decreased when irrigation with higher Mg content compared to Ca was adopted. The impact was more pronounced with wider ratios and in the later two years. Harmful effect on soil properties was also noticed because EC, pH and SAR in these treatments was recorded to be on higher side. Thus, irrigation waters having comparatively more Mg than Ca proved deleterious not only for cops but also impaired the soil conditions.]]>Bohn, H.R., B.L. McNeal and G.A.O. Conor,19852nd Edn.,pp: 241-243pp: 241-243Chaudhry, M.R., A. Hamid and B. Ahmad, 19861986Steel, R.G.D. and J.H. Torrie, 19842nd Edn.,pp: 107-109pp: 107-109