INDIAN BANKING RADAR (IBR) - IBPS AFO MAINS INTELLIGENCE MOCK

🔥 PLATINUM SERIES 2.0 | VOL. 193

📅 9 OCTOBER 2026 | FRIDAY

🎯 TARGET: IBPS AFO • AGRICULTURE OFFICER • NABARD • RRB

🧠 20 MCQs | 20 MARKS | 15 MINUTES

❌ NEGATIVE MARKING: 0.25 MARK FOR EACH WRONG ANSWER

🧠 IBR PROFESSIONAL APPROACH

FACT → SCIENCE → APPLICATION → CALCULATION → ECONOMICS → RISK → CREDIT DECISION

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🔥 SECTION A — PROFESSIONAL INTELLIGENCE TEST

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Q1. A pulse crop forms effective root nodules with Rhizobium. Which process directly converts atmospheric nitrogen into a form that can enter biological nitrogen metabolism:

A. Nitrification of ammonium into nitrate

B. Denitrification of nitrate into gaseous nitrogen

C. Biological nitrogen fixation by nitrogenase

D. Phosphorus solubilisation by root exudates

E. Potassium fixation in clay minerals

Q2. A soil test shows low available phosphorus in a calcareous soil despite fertiliser application. Which explanation and management approach are most appropriate:

A. Calcium is absent; apply calcium fertiliser immediately

B. Calcium-phosphate reactions may reduce phosphorus availability; assess placement and soil-test-based phosphorus management

C. Nitrogen fixation has converted all phosphorus into nitrogen

D. High soil pH guarantees maximum phosphorus availability

E. Phosphorus deficiency can be corrected only by increasing irrigation

Q3. An IPM programme recommends intervention when pest density reaches the economic threshold level (ETL). What is the principal purpose of this threshold:

A. Eliminate every insect from the field

B. Schedule pesticide spraying at fixed weekly intervals

C. Ensure that pesticide use is maximised

D. Trigger management before pest damage reaches the economic injury level

E. Replace field scouting with calendar-based spraying

Q4. A farmer plans to sow a sensitive crop after applying a residual herbicide to the preceding crop. Which information is most important before deciding the sowing date:

A. The herbicide's residual activity, label restrictions and prescribed plant-back interval

B. The previous crop's market price alone

C. The tractor's horsepower

D. The colour of the herbicide container

E. The number of farm workers

Q5. A seed lot has 92% physical purity and 85% germination. Assuming the standard pure-live-seed calculation applies, what is the pure live seed percentage:

A. 78.2%

B. 80.0%

C. 85.0%

D. 88.5%

E. 92.0%

Q6. A sloping agricultural field experiences substantial soil loss during heavy rainfall. Which combination is most appropriate for reducing runoff and erosion:

A. Up-and-down-slope cultivation and removal of vegetation

B. Repeated burning of crop residues

C. Contour cultivation and suitable vegetative barriers

D. Increasing slope length by removing field boundaries

E. Leaving the soil bare before the rainy season

Q7. A rice crop shows excessive vegetative growth and lodging after heavy nitrogen application. Which response is most appropriate for the next crop season:

A. Increase nitrogen further to strengthen the stem

B. Balance nitrogen with crop demand, growth stage and other nutrient requirements

C. Eliminate potassium regardless of soil-test results

D. Apply all nitrogen at one early application

E. Increase plant density without adjusting nutrient management

Q8. Grain is harvested at high moisture content and stored without adequate drying. Which management action best reduces the risk of storage deterioration:

A. Seal the grain immediately while it remains wet

B. Increase storage temperature to accelerate respiration

C. Mix wet grain with dry grain without measuring moisture

D. Dry the grain to the recommended safe-storage moisture and maintain suitable storage conditions

E. Stop inspecting the grain after storage

Q9. A dairy cooperative wants to reduce bacterial contamination of collected milk. Which practice is most effective:

A. Leave milk exposed to dust during collection

B. Mix milk from sick animals without screening

C. Delay cooling until the next day's collection

D. Use inadequately cleaned containers

E. Maintain milking hygiene, clean equipment and promptly cool milk

Q10. A farmer applies 150 kg of urea containing 46% nitrogen per hectare. How much nitrogen is applied per hectare:

A. 46 kg

B. 60 kg

C. 69 kg

D. 75 kg

E. 90 kg

Q11. A soil is confirmed to be sodic, with poor infiltration and excessive exchangeable sodium. Which amendment is commonly recommended when supported by soil-test and gypsum-requirement assessment:

A. Sodium chloride

B. Urea alone

C. Muriate of potash alone

D. Agricultural lime in every case, irrespective of soil conditions

E. Gypsum, followed by appropriate leaching and drainage management

Q12. A farmer installs a drip system in a horticultural field but experiences emitter blockage and uneven water delivery. Which maintenance measure is most appropriate:

A. Remove filtration permanently

B. Inspect and clean filters, check emitters and maintain the system according to specifications

C. Increase operating pressure without checking system limits

D. Ignore water quality

E. Stop monitoring application uniformity

Q13. A soil-borne pathogen persists in a field where the same susceptible crop is grown repeatedly. Which rotation strategy is most likely to help reduce pathogen build-up:

A. Continue growing the same susceptible crop

B. Use seed from diseased plants

C. Increase nitrogen application alone

D. Introduce suitable non-host crops, considering the pathogen's host range and survival structures

E. Irrigate continuously regardless of crop needs

Q14. An FPO aggregates produce from small farmers and negotiates with bulk buyers. Which outcome is a realistic potential advantage of aggregation:

A. Improved bargaining power and lower per-unit marketing costs where economies of scale are achieved

B. Guaranteed elimination of all price risk

C. Guaranteed doubling of farm-gate prices

D. Elimination of all quality standards

E. Guaranteed absence of post-harvest losses

Q15. A farmer earns ₹1,50,000 from produce sales. Variable production and marketing costs are ₹92,000. What is the gross margin before fixed costs:

A. ₹42,000

B. ₹48,000

C. ₹52,000

D. ₹58,000

E. ₹92,000

Q16. A poultry flock experiences panting and declining feed intake during hot weather. Which immediate management response is most appropriate:

A. Restrict drinking water

B. Increase stocking density

C. Improve ventilation, provide adequate drinking water and reduce heat load

D. Reduce air movement inside the shed

E. Expose birds to direct sunlight

Q17. Fish in a pond gasp near the surface before sunrise following several cloudy days and an algal bloom. Which explanation is most plausible:

A. Excess dissolved oxygen is always toxic to fish

B. Night-time respiration by aquatic organisms may deplete dissolved oxygen

C. Nitrogen fixation in legume root nodules consumes all pond oxygen

D. Water temperature has no influence on dissolved oxygen

E. Algal blooms always increase oxygen throughout the night

Q18. Crop A produces 4,000 kg of grain using 2,000 cubic metres of water consumed. Crop B produces 4,500 kg using 3,000 cubic metres. Based on physical water productivity, which statement is correct:

A. Crop A produces 1.0 kg per cubic metre

B. Crop B produces 2.0 kg per cubic metre

C. Both crops have equal water productivity

D. Crop B has higher water productivity because its yield is higher

E. Crop A has higher water productivity: 2.0 kg/m³ versus 1.5 kg/m³

Q19. An agricultural project costs ₹10 lakh. The borrower contributes 20% from own funds, and the bank finances the balance. Ignoring other financing components, what is the bank loan amount:

A. ₹2 lakh

B. ₹4 lakh

C. ₹6 lakh

D. ₹8 lakh

E. ₹10 lakh

Q20. A farmer seeks a term loan for drip irrigation. The project may reduce water use, but projected cash flows are uncertain and maintenance costs have been underestimated. What should the Agriculture Officer do:

A. Sanction the loan solely because drip irrigation saves water

B. Ignore the farmer's repayment capacity

C. Assess realistic project costs, expected benefits, maintenance, water availability and repayment capacity before deciding

D. Approve the loan solely on landholding size

E. Ignore crop-market risk because the project uses modern technology

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🗝️ ANSWER KEY

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Q1.C

Q2.B

Q3.D

Q4.A

Q5.A

Q6.C

Q7.B

Q8.D

Q9.E

Q10.C

Q11.E

Q12.B

Q13.D

Q14.A

Q15.D

Q16.C

Q17.B

Q18.E

Q19.D

Q20.C

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🧮 QUICK CALCULATION CHECK

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Q5. PURE LIVE SEED

Pure Live Seed % = Physical Purity % × Germination % ÷ 100

= 92 × 85 ÷ 100

= 78.2%

Q10. NITROGEN CONTENT

Nitrogen = Urea Quantity × Nitrogen Percentage

= 150 × 46%

= 69 kg/ha

Q15. GROSS MARGIN

Gross Margin = Revenue − Variable Costs

= ₹1,50,000 − ₹92,000

= ₹58,000

Q18. WATER PRODUCTIVITY

Crop A = 4,000 ÷ 2,000 = 2.0 kg/m³

Crop B = 4,500 ÷ 3,000 = 1.5 kg/m³

Crop A has higher physical water productivity.

Q19. BANK LOAN

Borrower's Contribution = 20% × ₹10 lakh

= ₹2 lakh

Bank Loan = ₹10 lakh − ₹2 lakh

= ₹8 lakh

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 🧠 PROFESSIONAL REVISION

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🌱 Rhizobium → Symbiotic nitrogen fixation in legumes.

🧪 Calcareous soil → Calcium reactions can reduce phosphorus availability.

🐛 IPM → Monitoring + ETL + Biological control + Need-based intervention.

🌾 Herbicide carryover → Residual activity + Label restrictions + Plant-back interval.

🌱 Pure live seed → Physical purity × Germination ÷ 100.

⛰️ Soil conservation → Contour farming + Vegetative barriers.

🌾 Excess nitrogen → Excessive vegetative growth + Lodging risk.

🌽 Safe grain storage → Proper drying + Moisture monitoring + Storage hygiene.

🥛 Milk quality → Hygienic milking + Clean equipment + Prompt cooling.

🧪 Urea → Approximately 46% nitrogen.

🌍 Sodic soil → Gypsum where soil assessment supports its use.

💧 Drip irrigation → Filtration + Emitter maintenance + Uniform application.

🌱 Crop rotation → Suitable non-host crops can help interrupt disease cycles.

🤝 FPO → Aggregation + Bargaining power + Potential marketing economies.

💰 Gross margin → Revenue − Variable costs.

🐔 Heat stress → Ventilation + Drinking water + Heat-load reduction.

🐟 Fish gasping before sunrise → Investigate dissolved oxygen immediately.

💧 Water productivity → Output per unit of water consumed or used, according to the selected indicator.

🏦 Agricultural credit → Project viability + Cash flow + Risk assessment + Repayment capacity.

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 ⚠️ HIGH-YIELD AFO MAINS EXAM TRAPS

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🔴 Nitrogen fixation is different from nitrification.

🔴 Phosphorus fertiliser application does not guarantee phosphorus availability in calcareous soils.

🔴 ETL is used to guide management before the economic injury level is reached.

🔴 Herbicide carryover depends on the active ingredient, soil, weather and label restrictions.

🔴 Pure live seed percentage combines physical purity and germination.

🔴 Contour farming reduces erosion risk on suitable slopes.

🔴 Excessive nitrogen may increase lodging risk.

🔴 Wet grain requires appropriate drying before safe storage.

🔴 Milk hygiene and prompt cooling reduce contamination and deterioration risks.

🔴 Gypsum is not a universal amendment for every soil problem.

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🌾 PREMIUM LEARNING & PRACTICE

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IBR PREMIUM LEARNING & PRACTICE

📘 IBPS AFO MAINS 📘 IBPS PRELIMS 📘 DCCB & PACS 📘 JAIIB 📘 CAIIB

🔥 DAILY PRACTICE • MOCK TESTS • CONCEPTUAL REVISION

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🎯 DAILY AFO CHALLENGE

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Before checking the answer key, ask yourself:

“Can I explain the agricultural science behind my answer, assess the economics, and apply it as an Agriculture Officer?”

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📢 FOLLOW • SHARE • PRACTISE

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🌾 IBR AFO MAINS MANTRA

UNDERSTAND THE SCIENCE. APPLY IT IN THE FIELD. ASSESS THE ECONOMICS. MAKE THE RIGHT AGRICULTURAL DECISION.

— INDIAN BA

NKING RADAR (IBR)