GROTEK - INSTA-GREEN - 500 MLINSTA GREEN NITROGEN FERTILIZER Insta Green is focused on re greening nutrient deficient plants. Its fast acting impact ensures a quick turnaround to high yielding growth. This product supplies soluble nitrogen calcium, magnesium and iron for immediate nutrient replenishment. Best used as a foliar spray for quick effect, this formula is also great as a root drench and even as a preventative supplement. Application Rate: 1ml makes 200L of solution.