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Plant Nutrition and Metabolism

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Questions and Answers

What is the primary function of nitrogen in plant growth?

To enhance the production of chlorophyll and other pigments

To promote root growth and development

To regulate the transport of water and nutrients in the plant

To facilitate the synthesis of proteins, hormones, and enzymes (correct)

What is the consequence of excessive nitrogen in plants?

Increased water absorption and transport

Enhanced fruit and flower production

Delayed flowering and fruiting (correct)

Increased root growth and development

What is the primary function of magnesium in plant growth?

To regulate the transport of water and nutrients in the plant

To facilitate the synthesis of proteins and enzymes

To promote the growth of stems and leaves

To act as a structural component of chlorophyll and facilitate photosynthesis (correct)

What is the main difference between organic and inorganic fertilizers?

Organic fertilizers are derived from plant and animal materials, while inorganic fertilizers are not Signup and view all the answers

What is the consequence of a magnesium deficiency in plants?

Yellowing and wilting of leaves Signup and view all the answers

What is the primary characteristic of inorganic fertilizers?

They dissolve readily in water and are immediately available to plants Signup and view all the answers

What is a consequence of excessive application of inorganic fertilizers on soil?

Increased soil acidity Signup and view all the answers

What is a problem associated with the storage and application of some nitrogen fertilizers?

Emissions of the greenhouse gas nitrous oxide Signup and view all the answers

What can happen to ecosystems due to the high solubility of inorganic fertilizers?

Eutrophication (increase in chemical nutrients) Signup and view all the answers

Why is it recommended to calculate soil nutrient content and crop requirements before applying inorganic fertilizers?

To minimize the effects of fertilizer overuse Signup and view all the answers

What can be a consequence of excessive organic fertilizer use?

Nitrate leaching or runoff of soluble organic compounds Signup and view all the answers