Home Crop Monitoring Plant Nutrients: Their Roles and Sources in Plant Growth

Plant Nutrients: Their Roles and Sources in Plant Growth


For correct plant development, an everyday provide of plant vitamins particularly the important ones, is critical. Vegetation soak up a lot of components from the soil, air and water throughout their development interval, however not all of those are important.

Solely 16 components have been discovered to be important for all crops and 4 others have been discovered to be important for some crops.

Components for Plant Growth

For ingredient to be so categorised, it has to meet the
following standards:

  1.  A deficiency of the ingredient makes it
    unattainable for the plant to finish the vegetative or reproductive stage of
    its life cycle
  2. The deficiency
    symptom of the ingredient in query will be prevented or corrected solely by
    supplying that ingredient.
  • The ingredient
    will need to have a direct affect on the plant, and have to be instantly concerned in the
    vitamin of the plant, fairly aside from its doable impact in correcting some
    microbiological or chemical situation in the soil or tradition medium  

Important ingredient like carbon, hydrogen, oxygen, nitrogen, phosphorus and sulphur are the weather of which proteins and therefore protoplasm are composed. The opposite ten components that are important for crops are potassium, calcium, magnesium, iron, manganese, molybdenum, copper, boron, zinc, and chlorine. The 4 components that are important just for some and not for all crops are sodium, cobalt, vanadium and silicon.

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Sources of Nutrient for Plant Growth

The next components are derived:

  1. From
    air; carbon (C) as CO₂ (carbon dioxide);
  2. From
    the water: hydrogen (H) and oxygen (O) as H₂O (water);
  3. From
    the water: fertilizer and animal manure : nitrogen (N) a substantial quantity of
    nitrogen can also be fastened by leguminous crops by root nodule micro organism

Macro and Micronutrients

Macronutrients are wanted by the crops in great amount, and giant portions must be utilized if the soil is poor in a number of of them. Inside the group of macronutrients, that are wanted for plant development in giant quantities, the first nutrient similar to nitrogen, phosphorus and potassium.

Whereas calcium, magnesium and sulphur are generally referred to as secondary vitamins as a result of their secondary significance In plant vitamin.

In distinction with macronutrients, micronutrients or hint components are required in solely minute quantities for proper plant development and must be added in very small portions after they can’t be offered by the soil.

plant growth
Plant Growth

Features of Vitamins in Plant Growth


  1. Nitrogen
    is the motor of plant development. It makes as much as 1 to 4 p.c of dry matter of
    the plant. It’s taken up from the soil in the type of nitrate (NO₃) or
    ammonium (NH₄⁺).
  2. Within the
    plant it combines with compounds produced by carbohydrate metabolism to type
    amino acids and proteins.
  3. Being
    the important constituent of proteins, it’s concerned in all the most important course of
    of plant improvement and yield formation.
  4. A great
    provide of nitrogen for the plant is essential additionally for the uptake of the opposite


  1. It constitutes
    0.1 to 0.4 p.c of dry matter of the plant.
  2. It performs
    a key function in the switch of vitality.
  3. It’s
    important for photosynthesis and different chemical-physiological course of in the
  4. It’s
    indispensable for cell differentiation for the event of the tissues,
    which type the rising factors of the plant


  1. Potassium
    makes up 1 t0 4 p.c of the dry matter of the plant.
  2. It prompts
    greater than 60 enzymes.
  3. It performs
    a significant half in carbohydrate and protein synthesis.
  4. Potassium
    improves the water regime of the plant and enhance is tolerance to drought,
    frost and salinity.
  5. Vegetation
    effectively provided with Ok are additionally much less affected by ailments

Magnesium (Mg)

  1. It’s
    a central constituent of chlorophyll, the inexperienced pigment of the leaves which features
    as acceptor of the vitality from the solar thus, 15 to twenty p.c of the magnesium discovered
    in plant is contained in the leaves.
  2. Mg
    can also be concerned in enzyme reactions associated to the vitality switch of the

Sulphur (S)

  1. It’s
    a necessary constituent of protein and additionally concerned in the formation of
  2. In most
    crops it makes as much as 0.2 to 0.3 p.c of dry matter

Calcium (Ca)

  1. Calcium
    is crucial for root development
  2. It’s
    a c0nstituent of cell wall supplies

or Hint Components

These are iron (Fe), manganese (Mg), Zinc (Zn), copper (Cu), molybdenum (Mo), chlorine (Cl) and boron (B). They’re a part of the important thing substances in plant development and are comparable with nutritional vitamins in human vitamin. Being taken up in minute quantities, their vary of optimum provide may be very small.

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