agriculture MCQs – Page 176

Practise multiple-choice questions from agriculture for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

agriculture Mcqs

1. soil science 2. agronomy 3. entomology 4. water management 5. horticulture 6. agricultural economics 7. plant pathology 8. food technology 9. animal husbandry 10. plant breeding and genetics

3501. N mineralization is effected by soil pH_______________?
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A. None of the above

B. Above 10

C. Above 6

D. Below 6

3502. The best soil for cotton cultivation is_________________?
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A. Silty soil

B. Clay loam soil

C. Loamy soil

D. Sandy soil

3503. The series of transformation which a nutrient undergoes in the biosphere before returning to its original formed is called_______________?
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A. None of the above

B. Carbon cycle

C. Nutrient cycle

D. Nitrogen cycle

3504. The Indus basin irrigation system has__________________?
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A. 19 Barrages

B. 25 Barrages

C. 11 Barrages

D. 41 Barrages

3505. A nutrient element is said to be essential if___________________?
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A. Plants can not complete their life cycle in absence of that element

B. Deficiency symptoms can be removed by application of that putrid

C. All the above

D. Nutrients has some physiological function in metabolism of plant

3506. The crops which are grown to reduce the soil erosion and natural losses by leaching is known as______________?
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A. Companion crops

B. Cover crops

C. Mixed crops

D. Ratooning crops

3507. Part of embryonic axis which develops into root is called___________________?
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A. Coleorluza

B. Coleoptile

C. Radicle

D. Plumule

3508. In 1992-93 the greatest decrease in the production of cotton was due to attack of_____________?
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A. Spotted boll worm

B. American boll worm

C. Aphids

D. CLCV

3509. A gas produced by anaerobic decomposition of organic compounds is called as_________________?
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A. CO2

B. Ethane

C. Ammonia

D. Methane

3510. The crop which are cultivated for grain purposes are called_________________?
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A. Fodder crops

B. Cereal crops

C. Fiber crops

D. Leguminous crops

3511. The leguminous plants are important in agriculture because_________________?
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A. Help in nitrogen economy of nature

B. Six crops are harvested in a year

C. They are disease resistant

D. They need very little water to grow

3512. The total dry matter produced by a plant as a result of photosynthesis is called_________________?
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A. Biological yield

B. Crop growth

C. Harvest index

D. Dry matter

3513. The depth of water required by crops during the base period is called_____________________?
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A. Duty of water

B. Frequency of water

C. Delta of water

D. Acre inch

3514. The systematic arrangement of soil in to groups or categories is called_________________?
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A. Classification

B. Perennials

C. Annuals

D. Ranking

3515. CLCV stands for__________________?
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A. cotton leaf curl virus

B. Cotton leaf cover virus

C. cotton leaf cotton virus

D. cotton leaf complete virus

3516. The K is predominantly in______________?
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A. All the above

B. Straw

C. Leaves

D. Grain

3517. Hitting the seed with force against a hard surface to break seed dormancy is called_______________?
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A. Stratification

B. Impaction

C. Scarification

D. Abrasion

3518. The contact herbicides are less effective to_________________?
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A. Perenial plants

B. Broad leaved weeds

C. All the above

D. Seasonal plants

3519. The available form of nitrogen for plants is_________________?
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A. NO3

B. NH4

C. Both a and b

D. non of these

3520. Excess of nitrogen to plants causes_________________?
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A. Delay in ripening

B. Delay in germination

C. All the above

D. Delay in growth

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