Nutrition In Plants – Mineral Nutrition

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Mineral nutrition is the study of how plants obtain mineral elements from soil and utilize them for their growth and development. Minerals are absorbed by the root system in the form of salts and ioni…

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Autotrophic nutrition: Plants (like green plants) manufacture their own organic food from simple inorganic raw materials (CO₂ and H₂O) using sunlight energy through photosynthesis. They are called pho…

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Hydroponics is a technique of growing plants in nutrient solution without soil, developed by Julius Von Sachs in 1980. Plants are grown in water containing known minerals in specific proportions, with…

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Aeroponics is a technique growing plants in an air/mist environment without soil, whereas hydroponics uses nutrient solution. Key differences: In aeroponics, roots are in a specially designed box with…

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The four criteria for essentiality of an element are: (1) The element is absolutely necessary for normal growth and reproduction, and is part of essential metabolites for plant growth, (2) Its require…

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Macronutrients (Macro-elements): Required in relatively large quantities (1-10 mg per gram of dry plant matter). Examples: Carbon (C), Hydrogen (H), Oxygen (O), Nitrogen (N), Phosphorus (P), Potassium…

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Carbon: Obtained as CO₂ from the atmosphere (air). Plants absorb CO₂ through stomata in leaves, and it is used in photosynthesis to synthesize carbohydrates. Oxygen: Absorbed in molecular form (O₂) fr…

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Nitrogen uptake: Plants absorb nitrogen from soil in two ionic forms—nitrate ions (NO₃⁻) and ammonium ions (NH₄⁺). Some organisms like nitrogen-fixing bacteria and cyanobacteria can fix nitrogen direc…