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