MCQs Soil Science-3

1. Soils irrigated by tube well water generally experience the deficiency of ___________

2. ___________________ describe the rate at which water moves through soil

3. Some weeds actively eliminate competition by releasing toxins in the soil and inhibit normal growth of other plants this phenomenon is known as ______________

4. _____________ _ is an intraspecific cellular extension, which increases the root surface area for efficient water and nutrient absorption

5. _____________ is an inter-species interaction, which improves soil nutrient uptake

6. _______________ is the inherent capacity of soil to supply nutrients in balanced form

7. Method which completely removes weed plans is called___________

8. The value of bulk density of mineral soil is always ______________ particle density

9. The most abundant mineral in the earth’s crust is _______________

10. __________ is the relative proportions of soil particles in the soil.

11. ____________ can influence the selection of irrigation method

12. ___________ is the most suitable soil for potato cultivation

13. Soils irrigated by tube well water generally experience the deficiency of ___________

14. _________  are the diverse community of microorganisms living in the rhizosphere

15. Cover crops cause reduction of ____________

16. Wheat is ______________ in nature

17. In ____________ an immature crop is incorporated into the soil

18. Azotobacter is a___________________ that fix atmospheric nitrogen in the soil

19. Efficiency of leguminous crops depends on ___________

20. Considering relationship with soil, pick the odd term from the following