agriculture MCQs – Page 146

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 Review each marked answer and report any item that may be outdated or unclear.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

2901. The soil air contains a number of gases ______________ & water vapours:
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A. Carbon dioxide

B. Nitrogen

C. Oxygen

D. All of the above

2902. International day of forest is celebrated on___________?
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A. None of the above

B. 15-Mar

C. 3-Mar

D. March-21

2903. Exposure of the manures to rains causes highest loss of___________?
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A. P

B. Cl

C. N

D. Cu

2904. In Pakistan, Nitrophos is manufactured in_________?
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A. Sawat

B. Shikarpoor

C. Lasbella

D. Multan

2905. Biological Weathering involves:
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A. Micro- organisms

B. Man and Animals

C. Higher Plants and Roots

D. All of these

2906. Small rivulets or finger like channels formed on the surface of earth by action of water, these channels are of small depth & can be leveled by tillage operations is:
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A. Sheet erosio.

B. Gully erosion

C. None of these

D. Stream bank erosion

2907. Integrated Nutrient Management (INM) is a well-accepted approach for the sustainable management of________?
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A. Soil Productivity

B. Increased crop production

C. both a and B

D. None of these

2908. The internal & external surfaces of soil colloids are positively and or negatively charged. Mostly ____________ is dominant:
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A. Negative

B. Zero

C. All of the above

D. Positive

2909. Process of mixing of soils is known as_________?
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A. The correct option is not present above

B. Laterization

C. Lessivage

D. Gleization

2910. Which of the following nutrient elements are regarded as energy exchangers:
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A. Hydrogen

B. Oxygen

C. Both A & B

D. None of these

2911. 1 meq of HCl is equal to_________?
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A. 14 mg of N

B. 140 mg of N

C. 0.14 mg of N

D. 1.4 mg of N

2912. Soil is a variable mixture of Major components:
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A. Solids

B. Gases

C. All of the above

D. Liquids

2913. The deficient macronutrient in the sodic soils is:_______?
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A. Cu

B. Mg

C. Mo

D. Ca

2914. Although some acid soils do exist in the northern mountainous regions of Pakistan (Mansehra, Sawat, Dir). Almost all cultivated soils of the country are ________________, with high base saturation and low organic matter content (generally less than 1%)?
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A. Alkaline

B. Very much acidic

C. Calcareous

D. both A & C

2915. Which bacteria convert nitrite to nitrate___________________?
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A. Pseudomonas

B. Frankia

C. Nitrobacter

D. None of the above

2916. The suitable species for reclamation of saline & sodic soil is:__________?
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A. Casuarina equisetifolia

B. Albizia lebbeck

C. Both A & B

D. None of the above

2917. The unit of a scale used to measure the level of acidity or alkalinity of chemicals is called:
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A. Ec

B. Pascal

C. pH

D. None of the above

2918. Walkley and blacks method of organic matter determination allows recovery of ______ ? organic carbon content:
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A. 45 ?

B. 33?

C. 44 ?

D. None of the above

2919. Inorganic constituents vary in size from fine clay particles _________ mm to large _________ mm gravel and rock:
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A. None of the above

B. 0.02 mm- 0.2 mm

C. < 0.002 mm- >2 mm

D. 0.5 mm 1.0 mm

2920. The process of transformation of raw organic matter into humus:
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A. Illuviation

B. Humification

C. Calcification

D. Horizonation

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