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