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