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