Elements In Plants
Along With Hormones, Some Specific Elements Also Play A Decisive Role In The Development Of Plants. These Elements Are Mainly
1. For The Manufacture Of ‘ Nucleic Acid ‘ (RNA + DNA). Is Liable. Due To Its Deficiency Leaves Turn Yellow, Lateral Buds Remain Dormant, Flowers Appear Late, Cell Division Stops. Its Excess Increases The Growth Of Leaves.
2. Phosphorus : It Is In Nucleo Proteins. Are Found. Aid In Cell Division. This | It Also Helps In Early Ripening Of Crops. Rooted | Crops Like Radishes, Turnips, Carrots And Underground Stems Like Potatoes, Sweet Potatoes, Etc. Become Fat And Large Due To The Excess Of Phosphorus.
3. Potassium : These Are Helpful In Carbohydrate And Protein Synthesis. In Its Absence, The Plants Are Not Able To Form Starch. Due To Its Availability, Healthy Flowers, Fruits And Seeds Are Formed In Plants.
4. Magnesium : It Is The Main Component Of Chlorophyll, The Green Color Of The Leaves Depends On It. Is. Its Deficiency Causes The Leaves To Turn Yellow.
5. Sulfur : It Is Helpful In Protein Formation, It Is Found Very Much In Mustard Oil.
6. Silica : It Is Found On The Surface Or Edges Of Leaves Or On Stems. They Are Mainly Found In Wheat, Sugarcane, Cotton Etc. Due To Their Presence, The Edges Of The Leaves Become Quite Strong.
7. Zinc : It Helps In The Growth Of Plants. Due To Its Deficiency, The Plants Remain Small. Leaves Remain Underdeveloped, Leaves Turn Yellow, Spotted.
The Growth Hormones Of Plants Are Responsible For The Formation Of Auxin . The ‘Blight Of Rice’ Of Paddy And The Scorching Disease Of Potato Are Caused By Its Deficiency.
8. Copper : Due To Its Deficiency The Plants Dry Up And Wither. It Produces The Plant’s Enzyme-Ascorbic Acid, Ryrosinase. Its Deficiency Causes ‘Die Back’ Disease In Lemon.
Note: (1) The Above Elements Have Been Divided Into 2 Parts.
(I) Large, Macro Nutrients And
(Ii) Micronutrient Elements.
The Number Of Macro Plant Nutrients Is 9 And The Number Of Micro Plant Nutrients Is 7 And Thus The Total Number Of Plant Nutrients Is 16.
(2) Nitrogen, Phosphorous And Potassium Are Collectively Called Critical Elements. These Are Also Called Primary Nutrients.
(3) ‘Malybdenum’ Is An Element Which Helps In Fixation Of Nitrogen In Plants.
