Soil texture can be refered to as

Distribution of the different sizes of soil particles

distribution of soil particles in a given sample

movement of water through the soil

Distribution of the different sizes of soil particles

JAMB UTME - Agricultural Science - 2019

Question 1 Report

Which of the following nutrient element is not a micro-nutrient

Calcium

Iron

Manganese

Boron

Answer Details

Calcium is not a micro-nutrient. Nutrients required by plants for growth and development can be classified into two categories: macro-nutrients and micro-nutrients. Macro-nutrients are nutrients that are required in larger amounts by plants, while micro-nutrients are required in smaller amounts. Calcium is a macro-nutrient that is essential for plant growth and development. It is required in relatively large amounts and plays an important role in cell wall formation, root development, and the regulation of other nutrients in the plant. In contrast, Iron, Manganese, and Boron are micro-nutrients that are required by plants in smaller amounts. These micro-nutrients are important for various functions in the plant, such as photosynthesis, enzyme activation, and hormone regulation. Therefore, Calcium is not a micro-nutrient because it is required in larger amounts by plants compared to micro-nutrients like Iron, Manganese, and Boron.






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