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Compare the effects of primary tillage and secondary tillage on soil condition and crop establishment.

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Free Soil Conservation Officer Practice Questions

Category No: 540/2025The Soil Conservation Officer exam is conducted by the Kerala Public Service Commission for recruitment to the Kerala Government Soil Survey and Soil Conservation Department. This exam tests candidates' knowledge in agriculture and related fields to select qualified officers for soil conservation roles. Successful candidates will be appointed on a pay scale of ₹55,200 - ₹1,15,300 and will undergo probation and training. The selection process involves online application through one-time registration and may include written or online tests.Direct Recruitment2 VacanciesDegree in Agriculture RequiredAge Limit: 20-36 YearsKerala PSCOnline ApplicationNo Application FeePrepare well to secure a government role in soil conservation with career growth prospects.

Try 15 free syllabus-aligned practice questions for the Soil Conservation Officer exam. Each question includes instant feedback so you can learn as you go. No sign-up required.

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Q1. Compare the effects of primary tillage and secondary tillage on soil condition and crop establishment.

  1. Primary tillage compacts soil; secondary tillage loosens it.
  2. Primary tillage breaks and turns soil; secondary tillage refines soil for seedbed preparation.
  3. Primary tillage removes weeds; secondary tillage increases soil erosion.
  4. Primary tillage adds fertilizers; secondary tillage removes crop residues.

Q2. Consider two crops: Crop A has a longer vegetative phase but shorter reproductive phase, while Crop B has a shorter vegetative phase but longer reproductive phase. Which crop is likely to produce higher yield under optimal conditions and why?

  1. Crop A, because longer vegetative growth increases biomass and photosynthetic capacity.
  2. Crop B, because longer reproductive phase allows more grain filling time.
  3. Both will produce equal yield as phases balance out.
  4. Yield depends only on soil fertility, not growth phases.

Q3. In a scenario where soil moisture is low, which sowing method would be most suitable to ensure better seed germination and why?

  1. Broadcasting, because it covers a larger area quickly.
  2. Drilling, because it places seeds at a uniform depth where moisture is retained.
  3. Dibbling, because it exposes seeds to air for faster drying.
  4. Ridge sowing, because it places seeds on elevated soil surfaces.

Q4. A farmer wants to improve crop yield without degrading soil quality. Which agronomic practice should be recommended?

  1. Continuous monocropping without crop rotation
  2. Implementing crop rotation and organic matter addition
  3. Excessive tillage to prepare seedbed
  4. Ignoring soil testing before fertilizer application

Q5. How does the concept of 'growth rate' differ from 'development rate' in the context of crop growth?

  1. Growth rate refers to morphological changes; development rate refers to biomass accumulation.
  2. Growth rate is the increase in size or mass; development rate is the progression through growth stages.
  3. Both terms are synonymous and used interchangeably.
  4. Growth rate measures photosynthesis; development rate measures respiration.

Q6. Which of the following is the most important criterion when selecting seeds for sowing to ensure high crop yield?

  1. Seed color
  2. Seed viability and purity
  3. Seed size
  4. Seed shape

Q7. In a scenario where a crop experiences drought stress during the flowering stage, which of the following effects on crop growth and development is most likely?

  1. Delayed germination and reduced seedling vigor.
  2. Reduced flower formation and poor grain set.
  3. Increased leaf area and enhanced photosynthesis.
  4. Accelerated maturation and increased yield.

Q8. A wheat crop has a leaf area index (LAI) of 3.5 during its peak vegetative growth. If the leaf area per plant is 350 cm2 and the plant density is 10 plants/m2, calculate the ground area covered by leaves per plant.

  1. 100 cm2
  2. 350 cm2
  3. 1000 cm2
  4. 3500 cm2

Q9. Which of the following best defines the scope of agronomy?

  1. Study of soil formation and classification only
  2. Science of crop production and soil management for sustainable agriculture
  3. Focus on animal husbandry and livestock management
  4. Study of agricultural machinery and equipment

Q10. Conceptually, how does agronomy contribute to sustainable agriculture?

  1. By increasing the use of chemical fertilizers indiscriminately
  2. By integrating crop management practices that maintain soil health and productivity
  3. By focusing solely on maximizing short-term crop yields
  4. By promoting monoculture farming systems exclusively

Q11. How does good tilth affect crop growth and yield?

  1. It reduces soil aeration and water retention.
  2. It improves soil structure, facilitating root penetration and moisture retention.
  3. It compacts the soil surface, preventing weed growth.
  4. It increases soil acidity, enhancing nutrient availability.

Q12. A farmer uses a moldboard plow to till 2 hectares of land. If the plow covers 0.5 hectares per hour, how many hours will the tillage operation take?

  1. 2 hours
  2. 3 hours
  3. 4 hours
  4. 5 hours

Q13. In a scenario where soil fertility is low, which crop density strategy is most advisable to optimize yield?

  1. High crop density to maximize plant numbers
  2. Moderate crop density to balance resource availability
  3. Very low crop density to minimize plant growth
  4. Crop density does not affect yield in low fertility soils

Q14. Compare the advantages of broadcasting versus dibbling as sowing methods in terms of seed placement and crop establishment.

  1. Broadcasting ensures uniform seed depth, dibbling does not.
  2. Dibbling places seeds at precise depth, broadcasting scatters seeds randomly.
  3. Broadcasting is more labor-intensive than dibbling.
  4. Dibbling results in lower seedling survival compared to broadcasting.

Q15. A field has a heavy clay soil that tends to crust after rainfall. Which tillage practice would best improve the tilth and reduce crusting?

  1. Deep moldboard plowing followed by harrowing
  2. No-till farming with herbicide application
  3. Repeated shallow disking without soil loosening
  4. Compaction using heavy rollers after planting
Free Soil Conservation Officer Practice Questions | Kerala PSC Prep