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 texture Soil organic matter content Soil pH Soil temperature 2. 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 3. 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 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 4. ——— can significantly increase the Cation Exchange Capacity of soil Minor change in soil pH Addition of sand Excessive tillage operation Addition of organic matter 5. 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 6. Base temperature for rice growth is ———— °C 5 °C 10 °C 7 °C 12 °C 7. ——- ———— ——–constitute over 90% of a plant’s dry weight Nitrogen, sulfur, calcium Magnesium, phosphorus, potassium Carbon, hydrogen, oxygen Nitrogen, phosphorus, potassium 8. Measurement of ——- is the primary function of a tensiometer Atmospheric pressure Soil moisture levels Soil temperature Rainfall intensity 9. A hygrometer is primarily used to measure ——– Atmospheric temperature Wind speed Relative humidity Atmospheric pressure 10. The primary mechanism by which soil particles attract cations is ———– Electrostatic force Hydrogen bonding Van der Waals forces Covalent bonding Loading …
