This is a product formulated from iron EDDHA chelated with a stability in soils very high, from pH 3 to 11.. Iron is essential for chlorophyll synthesis, photosynthesis, breath... Lacks of iron origin big problems in plants, and at the end a death of the culture may appears.
Microelements or microelements are necessaries for plants life, even when we can find in small quantities. The function of these elements is to take part in the cellular mass improving metabolic reactions...