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Which of the following best defines the scope of agronomy?

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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. 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

Q2. 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.

Q3. Compare the roles of agronomy and horticulture in crop production. Which statement is most accurate?

  1. Agronomy focuses on large-scale field crops; horticulture focuses on fruits, vegetables, and ornamentals
  2. Agronomy deals only with soil science; horticulture deals only with plant breeding
  3. Both agronomy and horticulture exclusively study animal production
  4. Horticulture is a subset of agronomy focusing on soil management

Q4. 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

Q5. A farmer wants to sow 10 kg of seeds per hectare using a seed drill that covers 0.5 hectares per hour. If the seed drill operates at 4 km/h and the width of the drill is 2 meters, calculate the seed rate in grams per meter length of the drill.

  1. 10 g/m
  2. 25 g/m
  3. 100 g/m
  4. 50 g/m

Q6. Which of the following best explains the concept of seed dormancy and its significance in crop production?

  1. Seed dormancy is the immediate germination of seeds after sowing.
  2. Seed dormancy is a period during which seeds do not germinate despite favorable conditions, ensuring survival.
  3. Seed dormancy refers to seeds losing viability over time.
  4. Seed dormancy is the process of seed coat hardening after germination.

Q7. Compare the effects of increasing crop density versus increasing plant spacing on crop yield and resource competition.

  1. Increasing crop density always increases yield without affecting resource competition.
  2. Increasing plant spacing reduces resource competition but may decrease total yield per area.
  3. Increasing crop density reduces resource competition among plants.
  4. Increasing plant spacing always increases yield by improving resource use.

Q8. 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

Q9. 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

Q10. 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.

Q11. Which of the following best describes the term 'crop geometry' in agronomy?

  1. The spatial arrangement of plants in a field
  2. The genetic makeup of a crop variety
  3. The nutrient content of the soil
  4. The water absorption capacity of plants

Q12. 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.

Q13. 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

Q14. A farmer wants to plant maize with a row spacing of 75 cm and plant spacing within the row of 25 cm. Calculate the crop density (plants per hectare).

  1. 53,333 plants/ha
  2. 53,333 plants/1000 m²
  3. 5,333 plants/ha
  4. 533,333 plants/ha

Q15. 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.
Free Soil Conservation Officer Practice Questions | Kerala PSC Prep