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