Stress Master 0-0026 1% Si is intended to be a supplement to a well-balanced fertilizer program. It is not intended as a replacement for sound soil fertilization and conventional cultural practices. Thorough coverage of foliage is necessary for best results when used as a foliar treatment. Avoid foliar applications under stressful conditions – rapid drying conditions, extremely slow drying conditions, frost, rain, or when frost or rain are expected. This product contains Quests proprietary Uptake Enhancement Technology “ UTE” for faster more uniform plant uptake and assimilation and for increasing soil microbe activity and beneficial soil VAM .