HORTICULTURE SCIENCE
DISEASE AND PEST MANAGEMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is a source of plant nutrients used to supply one or more of the essential nutrient elements to the plant?
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Fertilizer
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Pesticide
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Integrated Pest Management
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Insecticide
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Explanation:
Detailed explanation-1: -Soil is a major source of nutrients needed by plants for growth. The three main nutrients are nitrogen (N), phosphorus (P) and potassium (K). Together they make up the trio known as NPK. Other important nutrients are calcium, magnesium and sulfur.
Detailed explanation-2: -Plants and humans require similar sets of essential elements. Plants obtain their essential elements from air, water, and soil.
Detailed explanation-3: -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.
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