The correct answer is: A. Micronutrients.
Micronutrients are essential plant nutrients that are required in small amounts. They are not directly involved in the production of energy, but they are essential for the synthesis of proteins, nucleic acids, and other essential compounds. Micronutrients are also involved in the regulation of plant growth and development.
Boron, zinc, and manganese are three of the most important micronutrients for plants. Boron is essential for the development of cell walls and the transport of sugars. Zinc is essential for the synthesis of proteins and nucleic acids. Manganese is essential for the production of chlorophyll and the activation of enzymes.
Micronutrient deficiencies can cause a variety of problems in plants, including stunted growth, chlorosis, and necrosis. In severe cases, micronutrient deficiencies can lead to death.
To prevent micronutrient deficiencies, it is important to test the soil and apply the appropriate fertilizers. Micronutrients can be applied to the soil in the form of chelates, which are complexes of the micronutrient with a chelating agent. Chelates help to make the micronutrients more available to plants.
Here is a brief explanation of each option:
- Macronutrients are essential plant nutrients that are required in large amounts. They are directly involved in the production of energy. Macronutrients include nitrogen, phosphorus, and potassium.
- Soil vitamins is a term that is sometimes used to refer to micronutrients. However, this term is not technically accurate, as vitamins are organic compounds that are not essential for plant growth.
- MBZ nutrients is a term that is sometimes used to refer to boron, zinc, and manganese. However, this term is not technically accurate, as these elements are not a single group of nutrients.
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