MCQs Agronomy-47 Posted on December 7, 2024August 30, 2025Author agropublishers 0 1. ———— of the following is NOT a factor that primarily influences CEC Soil temperature Soil organic matter content Soil pH Soil texture 2. Field Capacity is the ———– Total amount of water in the soil before saturation Minimum water content needed for plant survival Amount of water lost through evaporation Maximum amount of water a soil can hold after saturation and drainage 3. How does microclimate differ from macroclimate? Microclimate is the climate of a small area, while macroclimate is the climate of a large region Microclimate is the climate of a large region, while macroclimate is the climate of a small area Microclimate is the climate of a city, while macroclimate is the climate of a rural area Microclimate is the climate of a mountain, while macroclimate is the climate of a valley 4. ——— can significantly increase the Cation Exchange Capacity of soil Excessive tillage operation Addition of sand Minor change in soil pH Addition of organic matter 5. The primary mechanism by which soil particles attract cations is ———– Van der Waals forces Covalent bonding Electrostatic force Hydrogen bonding 6. Measurement of ——- is the primary function of a tensiometer Soil temperature Rainfall intensity Atmospheric pressure Soil moisture levels 7. Base temperature for rice growth is ———— °C 10 °C 12 °C 7 °C 5 °C 8. ——- ———— ——–constitute over 90% of a plant’s dry weight Nitrogen, phosphorus, potassium Nitrogen, sulfur, calcium Magnesium, phosphorus, potassium Carbon, hydrogen, oxygen 9. A hygrometer is primarily used to measure ——– Atmospheric temperature Wind speed Relative humidity Atmospheric pressure 10. Which of the following best describes effective rainfall? Rainfall that is absorbed by the soil and contributes to plant growth Rainfall that evaporates before reaching the ground and does not contribute to soil moisture Rainfall that exceeds the infiltration capacity of the soil and runs off Total rainfall in an area Loading …
