Soil as reservoir of essential elements
- Due to weathering and breakdown of rocks, majority of elements are found in soil for the growth of plants.
- Plant absorbs mineral from soil in form of dissolved ions and inorganic salts.
- The minerals which are derived from rock minerals, their role in plants in called mineral nutrition.
- Soil also harbors nitrogen fixing bacteria, holds water, supplies air to roots and act as matrix that stabilizes the plant.
- Fertilizes are composed of both micronutrients and macronutrients and applied to plants as per need.
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