Hi agriculturists, welcome to the daily MCQ on Soil Science for agriculture examinations. Read all the questions very carefully before attempting. Today’s test series consists of 50 questions based on the previous year’s questions of the Licensure Examination for Agriculturists. Hence, attempting these questions will help you improve your skills for the upcoming examination.

In this test series, we have focused on important topics of Soil Science. With the help of this test series you will be able to test your knowledge and prepare well for the upcoming examinations.

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MCQ On Soil Science

MCQ On Soil Science

1. Which soil texture is most likely to have the highest water retention capacity?

2. What is the effect of high bulk density on root growth?

3. Which soil structure is most beneficial for agricultural production?

4. How does particle density differ from bulk density?

5. Which factor primarily influences soil porosity?

6. Calculate the bulk density of soil with a mass of 1.2 kg and volume of 1.0 L.

7. What is the primary role of cation exchange capacity (CEC) in soil?

8. Which soil pH range is considered optimal for most crop growth?

9. What is the impact of high soil organic matter on nutrient availability?

10. Which microorganism is primarily responsible for nitrogen fixation in soil?

11. What process involves the breakdown of organic matter in soil?

12. Which nutrient is most likely to be deficient in highly weathered tropical soils?

13. Which soil amendment is used to raise soil pH?

14. What is the main benefit of using cover crops in soil management?

15. Which irrigation method minimizes water loss through evaporation?

16. What is the purpose of soil drainage systems in agricultural fields?

17. Which process is used to remove salts from saline soils?

18. How does soil pH affect the availability of micronutrients?

19. Which practice can help reduce soil erosion in hilly areas?

20. What is the role of gypsum in soil management?

21. Which soil microorganism group is primarily involved in decomposition?

22. Which nutrient is most commonly associated with chlorosis in plants?

23. Which soil conservation practice involves the planting of trees along contours?

24. What is the effect of high sodium concentration on soil structure?

25. What is the primary function of mycorrhizae in soil ecosystems?

26. Which type of erosion is characterized by the formation of small channels?

27. How do conservation tillage practices benefit soil health?

28. Which soil property is directly influenced by soil organic matter?

29. What is the primary cause of waterlogging in agricultural fields?

30. Which soil amendment is used to improve saline soil conditions?

31. How does soil compaction affect root growth?

32. Which practice helps improve soil aeration?

33. What is the impact of high levels of aluminum in acidic soils?

34. Calculate the cation exchange capacity (CEC) of a soil sample with 5 meq/100g of Ca²⁺, 3 meq/100g of Mg²⁺, and 2 meq/100g of K⁺.

35. Which factor most influences soil infiltration rates?

36. Which soil component primarily determines its buffering capacity?

37. What is the main advantage of bioremediation in soil management?

38. Which element is critical for nitrogen fixation in legumes?

39. How does soil organic matter contribute to soil fertility?

40. What is the primary purpose of green manure in agriculture?

41. Which soil amendment is commonly used to improve clay soil structure?

42. How does salinity affect plant growth in agricultural soils?

43. Which method is effective for preventing nutrient leaching in sandy soils?

44. What is the role of earthworms in soil health?

45. Which soil pH range is optimal for most plant growth?

46. How does soil compaction influence water infiltration?

47. Which organic matter addition is known to enhance microbial activity in soils?

48. What is the primary advantage of crop rotation in soil management?

49. Which factor contributes to the formation of acidic soils?

50. What is the significance of soil texture in agriculture?

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