FertiRain™ is a multi-nutrient formulation designed for foliar application that provides supplemental feeding as part of a nutrient program or for providing corrective feeding when nutrient deficiencies are observed. Readily available, dynamic plant nutrition is the essential foundation to effective utilization of nutrients. Single- source materials cannot provide this nutrient harmony. FertiRain™ contains multiple nutrients including primary, secondary, and micronutrients.
This information was taken directly from AgroLiquid's website.