General Characteristics b The amount of micronutrient that is needed by the plant can have a narrow ange. If the amount of micronutrient is too high, it is possible for toxicity to occur Available forms 1. Cations: Fe2+ Fe3+. Mn2+ Zn2+ Cu2+ 2. Anions: MoO42, Ch- 3. Neutral: H3 BO3B The amount of micronutrient that is needed by the plant can have a narrow range. If the amount of micronutrient is too high, it is possible for toxicity to occur. Available forms 1. Cations: Fe2+, Fe3+, Mn2+, Zn2+, Cu2+ 2. Anions: MoO4 2- , Cl- 3. Neutral: H3BO3 General Characteristics