agriculture MCQs – Page 125

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 Review each marked answer and report any item that may be outdated or unclear.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

2481. Conservation agriculture improves the water use efficiency of dryland systems. It has components:
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A. Crop rotations for better utilization of available water & nutrients

B. all of the above

C. Residue return to keep at least 30% of soil covered

D. Reduced soil disturbance through no-till or minimum till

2482. The immobilization and accumulation of the eluviated constituents at some depth beneath the soil surface:________?
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A. Iluviation

B. Eluviation

C. Illuviation

D. Melanization

2483. Pakistan being predominantly an arid and semiarid country, In addition to agricultural productivity losses and increasing poverty, desertification results in significant reductions in _________?
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A. loss of biodiversity

B. All of these

C. Carbon storage in soils

D. Contributing to global warming

2484. The evolution of new species is known as_____________?
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A. Smog

B. Speciation

C. Specialization

D. None of these

2485. The virus infecting bacteria is called:_________?
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A. Bacterin

B. Bacteriophage

C. Bacteroid

D. All of these

2486. Those Amino acids which the body cannot synthesized are called __________________________?
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A. Pietary non essential

B. None of above

C. Essential Amino acid

D. Dietary essential amino acid

2487. Most salt tolerant grass is___________?
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A. Giant star grass

B. All of the above

C. Kallar grass

D. Para grass

2488. What was the recorded GDP growth rate of Pakistan in 2019 ?
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A. 7.29%

B. 5.29%

C. 9.29%

D. 3.30 % ?

2489. International day of forest is celebrated on___________?
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A. March-21

B. None of the above

C. 3-Mar

D. 15-Mar

2490. The seventieth element included in the list of essential nutrient element is:__________?
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A. Vanadium

B. Sodium

C. Cobalt

D. Nickle

2491. Which of the following crop takes N in ammonical form:
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A. Mustard

B. Cotton

C. Wheat

D. Rice

2492. The albedo of the earth is:__________?
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A. 30%

B. 20%

C. 10%

D. 35%

2493. Potassium (K) fixation capacity is maximum in:____________?
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A. Vermiculite

B. Montmorillonitic

C. Amorphous clay

D. Illite

2494. Rhizosphere is:
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A. Root surface

B. Area with in the roots

C. An area of soil in immediate vicinity around root

D. An area of soil in from root surface to 10 cm

2495. Soil Organic Matter (SOM) serves not only as a reservoir of all the required plant nutrients, but it:
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A. Maintains the productivity of soil

B. Provides energy for the microbial

C. Gives structure to the soil

D. All of these

2496. Among the root crops, the application of potassic fertilizers is essential in____________?
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A. Radish

B. Carrot

C. All of the above

D. Turnip

2497. Who consider the various properties of soil in relation to plant production?
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A. Pedologist

B. agronomist

C. Edaphologists

D. Soil chemist

2498. Which of the following fertilizers show maximum residual acidity with the continuous soil application:
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A. Ammonium sulphate

B. Calcium ammonium nitrate

C. Ammonium nitrate

D. Urea

2499. If a manure pile is exposed to the rain, what nutrient will be lost the most ?
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A. Mg

B. S

C. N

D. Ca

2500. Fe is trivalent in which of the chemical compound:
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A. None of these

B. Fe3 (NO2)

C. Fe2 (NO3)3

D. Fe (NO3)3

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