Trace Elements as Fertilizer Micronutrients
Izabela Michalak, Agnieszka Saeid, Katarzyna Chojnacka, Mateusz Gramza
Trace elements are important in human, animal, and plant nutrition. One of the main sources of food for humans and animals are plants. Therefore, the effect of trace elements (optimal doses, as well as excess and deficiency) on plant growth is described. Plants use several trace elements in small quantities. In this chapter special attention is paid to boron, cobalt, copper, iodine, iron, molybdenum, manganese, selenium, zinc, silicon, nickel and chlorine as fertilizer micronutrients. The functions of each trace element are described, both with the symptoms of their deficiency and toxicity, as well as the chemical forms of that are delivered into or present in the soil.