JAMB and WAEC Agricultural Science questions: Husbandry of field crops

41 questions with answers and explanations. Tap an option to check yourself.

1. Question 1· Husbandry of field crops· JAMB

   Groundnut is harvested when

   • Apods are still white and soft
   • Bflowers first open
   • Cseedlings emerge
   • Dleaves turn yellow and pods are mature

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2. Question 2· Husbandry of field crops· JAMB

   Cocoa pods are ready for harvest when

   • Athey change colour from green to yellow or red
   • Bthey fall to the ground
   • Cflowers appear
   • Dleaves are shed

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3. Question 3· Husbandry of field crops· WAEC

   Supplying in crop production means

   • Athinning
   • Breplacing seeds or seedlings that failed to grow
   • Charvesting
   • Dweeding

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4. Question 4· Husbandry of field crops· JAMB

   Planting two or more crops on the same piece of land at the same time is

   • Amonocropping
   • Bmixed cropping
   • Ccrop rotation
   • Dshifting cultivation

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5. Question 5· Husbandry of field crops· WAEC

   Yam is usually staked to

   • Aexpose the leaves to sunlight
   • Bprevent rooting
   • Creduce tuber size
   • Dattract pests

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6. Question 6· Husbandry of field crops· JAMB

   Planting crops too close together leads to

   • Acompetition and lower yield per plant
   • Bbigger fruits
   • Cfewer pests
   • Dfaster drying

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7. Question 7· Husbandry of field crops· JAMB

   Yam vines are staked in order to

   • Areduce yield
   • Bexpose the leaves to sunlight for better yield
   • Cprotect against floods
   • Dattract pests

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8. Question 8· Husbandry of field crops· WAEC

   A commonly recommended spacing for maize is about

   • A10 cm × 10 cm
   • B2 m × 2 m
   • C75 cm × 25 cm
   • D5 m × 5 m

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9. Question 9· Husbandry of field crops· JAMB

   Supplying, as a crop husbandry practice, means

   • Aharvesting the crop
   • Bapplying fertiliser
   • Creplacing seeds or seedlings that failed to grow
   • Dremoving weeds

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10. Question 10· Husbandry of field crops· JAMB

    Yam is staked to

    • Aimprove drainage
    • Bkeep away goats
    • Cstore the tubers
    • Dexpose leaves to sunlight

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11. Question 11· Husbandry of field crops· JAMB

    The seed rate for a crop depends mainly on

    • Asoil colour
    • Bseed size, spacing and viability
    • Crainfall alone
    • Dthe farmer's age

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12. Question 12· Husbandry of field crops· WAEC

    Oil palm fruits are harvested when

    • Aseveral loose fruits fall from the bunch
    • Bthe leaves turn brown
    • Cthe tree is cut down
    • Dflowers first open

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13. Question 13· Husbandry of field crops· WAEC

    Rice seedlings are usually transplanted from the nursery into

    • Atree trunks
    • Bdry sandy hills
    • Cflooded paddy fields
    • Dgreenhouses only

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14. Question 14· Husbandry of field crops· WAEC

    Cassava is usually ready for harvesting from about

    • A1 month after planting
    • B9 to 12 months after planting
    • C3 weeks after planting
    • D5 years after planting

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15. Question 15· Husbandry of field crops· WAEC

    Mulching helps to

    • Aincrease erosion
    • Bconserve soil moisture and suppress weeds
    • Cattract pests
    • Dreduce yields

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16. Question 16· Husbandry of field crops· WAEC

    Seedlings raised in a nursery before being moved to the field are

    • Asupplied
    • Bthinned
    • Ctransplanted
    • Drogued

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17. Question 17· Husbandry of field crops· WAEC

    Vegetables such as amaranthus (green) are usually harvested

    • Aa few weeks after planting
    • Bafter five years
    • Conly once in a decade
    • Dbefore sowing

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18. Question 18· Husbandry of field crops· JAMB

    Thinning of seedlings is done to

    • Aadd fertiliser
    • Bincrease pests
    • Creduce competition among plants
    • Dharvest early

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19. Question 19· Husbandry of field crops· JAMB

    Hardening-off of seedlings means

    • Aadding fertiliser
    • Bwatering them heavily
    • Cgradually exposing them to field conditions before transplanting
    • Dremoving weeds

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20. Question 20· Husbandry of field crops· WAEC

    Raising seedlings in a nursery before transplanting is common for

    • Ayam
    • Bmaize and sorghum
    • Ccassava
    • Dtomato and pepper

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