MCQs Soil Science-59 Posted on November 30, 2025November 30, 2025Author agropublishers 0 MCQs Soil Science-59 1. Soil enzyme activity is highest in —— Organic matter-rich soils Clayey soils Sandy soils Saline soils 2. Nutrient imbalance results in ———- All of these Nutrient Deficiencies Poor Plant growth Nutrient Toxicity 3. A soil’s inherent nutrient content mainly determines—- Fertility Drainage Productivity All of these 4. Soil compaction increases soil productivity False True 5. Which of the following is NOT included in the soil organic matter (SOM) Plant residues Microbial biomass Soil minerals Humus 6. Lignin-rich materials decompose slowly in the soil True False 7. Good soil fertility significantly reduces the need for ——- Excess irrigation Insecticides Herbicides Excess fertilizers 8. Soil organic matter contributes to the dark color of topsoil True False 9. Humification is the process of ——— Acidification of soil Clay synthesis Formation of humus Mineralization of nitrogen 10. Potassium is essential for drought tolerance in plants False True Loading … Question 1 of 10
