1 Posted on October 9, 2026Author agropublishers 0 1. A friable soil is one that ___________________ Is permanently waterlogged Is extremely hard when moist Lacking soil aggregates Crumbles readily under suitable moisture conditions 2. Good tillage should primarily be based on _____________ The deepest possible tillage The agronomic objective and soil conditions The largest available tractor The maximum possible number of operations 3. Tillage of excessively wet soil may increase the risk of ____________________ Compaction and structural damage Reduced bulk density in all situations Improved soil structure in all cases Complete elimination of clods 4. Excessive pulverization or over-tillage of soil may result in ________________ Improved aggregate stability in all cases Permanent improvement of soil health Loss of desirable soil structure Elimination of erosion 5. Repeated shallow tillage may contribute to development of a _____________ Plough or tillage pan Root nodulation Drought condition Soft soil patch 6. Seedbed preparation is primarily intended to provide conditions suitable for _________________ Rapid and uniform germination and emergence Soil leveling Soil protection Complete soil inversion 7. What is the key distinction between tillage and tilth? Tilth refers only to soil fertility Tillage is a soil property, whereas tilth is an implement Both terms have exactly the same meaning Tillage is a process, whereas tilth is a soil condition 8. Tillage affects crop establishment partly through its influence on ___________________ Pollination type Genetic variability Flower color Seed–soil contact and soil physical conditions 9. A good seedbed should provide ____________ Suitable aeration Adequate moisture Good seed–soil contact All of these 10. Tillage influences crop growth mainly by modifying the ______________ Genetic composition of the crop Soil environment around plant roots Photoperiod of the crop Atmospheric nitrogen concentration Loading … Question 1 of 10
