| Themes > Science > Earth Sciences > Geology > Soils > Soil Composition > Components and Structure > Cation Nutrients |
Cation nutrients tend to be metallic mineral elements, important for both plant and microbial nutrition as components of enzymes. Canon nutrients are generally water-soluble and enter the soil either through the recycling of organic matter or by addition of mineral nutrient sources. Cations are called base elements because they form bases in solution. The major cation nutrients are calcium, magnesium, and potassium. These nutrients are essential for uptake and metabolization of the anion nutrients. Calcium. Calcium is essential for nitrogen uptake and protein synthesis in plants and crops. It also has a role in enzyme activation and cell reproduction. Magnesium. Magnesium is an essential part of the chlorophyll molecule. It's necessary for phosphorous metabolism and enzyme activation. Potassium. Potassium is essential for carbohydrate metabolism and cell division. It regulates the absorption of calcium, sodium, and nitrogen. |
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