Essential Plant Nutrients; Nitrogen.

Any farmer around the world knows that  Nitrogen is the mineral element that plants require in very large amounts. It is taken up from the soil as nitrate (NO-3)  and or ammonium (NH+4) ions.I therefore would like to take you through the importance of Nitrogen on your crops and why it’s absence  leads to low quality yields on your piece of land.

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What are the functions of Nitrogen?
-Nitrogen is a constituent of proteins (amino acids) , nucleic acids, chlorophyll and growth hormones.
– An adequate supply of Nitrogen increases both the soluble amino acids and proteins in leaf; the additional proteins allows the leaves to grow larger and hence have a larger area for photosynthesis.
-More to this, an adequate supply of Nitrogen promotes a dark green colouration by promoting chlorophyll formation through increase in Nitrogen concentration in the crop.
Deficiency Symptoms
Nitrogen Deficiency rapidly inhibits plant growth. In the event that such a deficiency persists, most species show chlorosis which refers to the yellowing of leaves especially in the older leaves near the base of the plant.
– Under severe Nitrogen deficiency, these leaves become completely yellow (or tan) and fall of the plant; younger leaves may not show this symptoms initially. The reason behind this is that Nitrogen can be mobilised from older leaves. Thus a Nitrogen deficient plant may have light, green upper leaves and yellow or tan lower leaves.
– When Nitrogen deficiency develops slowly, plants may have markedly slender and often woody stems. This woodiness maybe due to a build up of excess carbohydrates that cannot be used in the synthesis of amino acids or other Nitrogen compounds.
– Carbohydrates not used in Nitrogen metabolism  may also be used in anthocyanine synthesis,leading to the accumulation of this pigment.
This condition is always revealed as a purple colouration in leaves,petioles, and stems  of Nitrogen-deficient plants such as tomatoes and certain varieties of plants.
Know why you need that Ammonium nitrate fertilizer.

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