The College of Agriculture / University of Basra discusses a doctoral thesis entitled (The effect of water magnetization and spraying with silicon and liquid sulfur (Zolfast) in increasing the salt tolerance of cauliflower (Brassica oleracea var. botrytis). The researcher (Omar Amer Ibrahim) aims to address the problem of irrigation water salinity and its effect on The growth and yield of cauliflower, the study concluded the importance of magnetically treating irrigation water, spraying with silicon and zolfast and its positive reflection on growth indicators and the yield under study.