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