Supplementation of mineral nutrients through foliar spray - A review

Foliar fertilization is nutrition through leaves, is a very efficient technique of supplementary fertilization. Foliar nutrition is very important because foliar nutrients facilitate easy and quick consumption of nutrients by penetrating the stomata or leaf cuticle and enters the cells. Foliar fertilization is used as a means of supplying supplemental doses of macro and micro-nutrients, plant hormones, stimulants, and other beneficial substances. It is determined that during crop growth supplementary foliar fertilization increase plants mineral status and improve crop yields. Keeping these facts in view, the literatures on foliar application of plant mineral nutrients on crops are reviewed in this paper to indicate future benefits of foliar nutrient spray investigations and their importance for agronomic science and practice.