FORESTRY
SOIL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following are the elements that can be absorbed atmospherically?
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Phosphorus, Nitrogen and Carbon
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Carbon, Nitrogen, Potassium
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Nitrogen, Oxygen and Carbon
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Carbon, Oxygen, Hydrogen
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Explanation:
Detailed explanation-1: -Plants take up essential elements from the soil through their roots and from the air through their leaves. Nutrient uptake in the soil is achieved by cation exchange, wherein root hairs pump hydrogen ions (H+) into the soil through proton pumps.
Detailed explanation-2: -Sulphur is a macronutrient while Iron, Zinc, and Manganese are micronutrients for plants.
Detailed explanation-3: -Plants are unable to absorb nitrogen directly from the atmosphere (N2).
Detailed explanation-4: -Iron, calcium and boron are supplied to the plants through the soil.
There is 1 question to complete.