Fundamentals of Plant Nutrition MCQs Quiz 7

1. Clay soils may reduce nutrient availability under poor aeration due to _______

 Erosion

 Nutrient fixation

 Volatilization

 Leaching

2. Root interception contributes to nutrient uptake by _______

 Transport via water

 Microbial breakdown

 Gas exchange

 Direct root contact with nutrients

3. Waterlogged soils promote nutrient loss through _______

 Leaching of calcium

 Volatilization of phosphorus

 Fixation of potassium

 Denitrification of nitrogen

4. Well-aerated soils favor which nitrogen transformation?

 Volatilization

 Denitrification

 Immobilization

 Nitrification

5. Soil moisture influences nutrient availability primarily by affecting _______.

 Bulk density

 Nutrient mobility

 Soil color

 Soil texture

6. The essentiality of nutrients is fundamentally linked to _______.

 Climate conditions

 Biochemical function

 Plant genetics

 Soil type

7. Mass flow is the dominant mechanism for movement of _______

 Phosphorus

 Potassium

 Zinc

 Nitrate nitrogen

8. In fine-textured soils, nutrient retention is generally higher because of _______.

 Low organic matter

 Low porosity

 High surface area

 High infiltration

9. In a nutrient omission study, plants fail to produce viable seeds. This indicates the nutrient is __________________

 Beneficial

 Toxic

 Essential

 Non-essential

10. Diffusion is the main transport mechanism for which nutrients?

 Phosphorus and potassium

 Sodium and chloride

 Calcium and magnesium

 Nitrogen and sulfur

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