MCQs Soil Science-53 Posted on June 27, 2025August 30, 2025Author agropublishers 0 1. NDVI is an abbreviation of __________ None of these Nutrient Deficiency Verification Instrument Normalized Difference Vegetation Index Nitrogen Density Vegetation Indicator 2. What type of soil particle is known for its poor water infiltration and drainage? Sand Loam Silt Clay 3. _________ is commonly used for collecting soil samples from the field Soil gauge Soil auger Soil moisture meter Penetrometer 4. Micronutrients are required in small amounts and normally constitute __________ of a plant’s dry weight None of these Less than 500 mg kg –1 (0.05%) More than 10,000 mg kg –1 (1.0%) 1000 mg kg –1 (0.1%) or more 5. What is the primary gaseous product lost from soil due to the volatilization of nitrogenous fertilizers? Nitrogen dioxide (NO₂) Nitric oxide (NO) Ammonia gas (NH₃) Nitrogen gas (N₂) 6. Aluminum toxicity is a major concern in ______________ soils Neutral Sodic Acidic Alkaline 7. __________ is commonly used to determine potassium content in soil and plant samples. EC meter Flame photometer pH meter Spectrophotometer 8. Volatilization loss of nitrogen (N) is relatively higher in _______ soils Sandy soils Clayey soils Acidic soils Alkaline soils 9. Siderophores, produced by soil biota, are primarily _______________ Iron transporting and chelating compounds Plant growth regulators Broad-spectrum antibiotics High molecular weight compounds 10. Availability of __________ increased in alkaline soils Copper Zinc Molybdenum Iron Loading … Question 1 of 10
