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