Ferrous fertilizer and its requirements of use

Iron is a nutritional element to both man and plant. The popularity of irondeficit chlorosis has affected the growing of plants and the quality of fruits, and finally the human health.A review is presented on irondeficit symptom, irondeficit soils as well as iron fertilizers and their varieties, effciency and application by latest research. The bioferrous fertilizer with high efficiency is expected as a leading variety in the future.