Introductory Agriculture: Art, Science, Business & Basic Elements of Crop Production
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Question No. 1
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The scientific discipline dealing with the principles and practices of crop production and field management is known as:
A.
Horticulture
B.
Agronomy
C.
Entomology
D.
Pathology
Question No. 2
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Which of the following is considered a primary macronutrient required in large quantities by plants?
A.
Zinc
B.
Manganese
C.
Nitrogen
D.
Boron
Question No. 3
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The practice of growing two or more crops simultaneously on the same field is called:
A.
Monoculture
B.
Crop rotation
C.
Intercropping
D.
Fallow
Question No. 4
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What is the primary purpose of tillage in agriculture?
A.
To increase soil erosion
B.
To prepare a suitable seedbed
C.
To decrease water infiltration
D.
To reduce nutrient availability
Question No. 5
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Which term refers to the process by which water is absorbed by plant roots and then evaporated from leaves and stems?
A.
Precipitation
B.
Percolation
C.
Transpiration
D.
Infiltration
Question No. 6
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The study of insects, particularly those affecting agriculture, is known as:
A.
Mycology
B.
Nematology
C.
Entomology
D.
Phytopathology
Question No. 7
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Which type of irrigation method delivers water directly to the root zone of plants, minimizing water loss?
A.
Flood irrigation
B.
Furrow irrigation
C.
Drip irrigation
D.
Sprinkler irrigation
Question No. 8
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The cultivation of fruits, vegetables, and ornamental plants is broadly covered under the science of:
A.
Agronomy
B.
Forestry
C.
Horticulture
D.
Apiculture
Question No. 9
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What is the role of legumes in crop rotation for soil fertility?
A.
They deplete soil nitrogen.
B.
They increase soil compaction.
C.
They fix atmospheric nitrogen.
D.
They promote weed growth.
Question No. 10
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A substance applied to soil or directly to plants to supply essential nutrients for growth is called a(n):
A.
Pesticide
B.
Herbicide
C.
Fungicide
D.
Fertilizer
Question No. 11
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Which of the following describes the pH range generally suitable for optimal growth of most agricultural crops?
A.
Highly acidic (below 4.0)
B.
Neutral to slightly acidic (6.0-7.5)
C.
Highly alkaline (above 9.0)
D.
Extremely variable (any range)
Question No. 12
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Integrated Pest Management (IPM) primarily aims to:
A.
Eliminate all pests completely
B.
Rely solely on chemical pesticides
C.
Manage pests using a combination of methods with minimal environmental impact
D.
Ignore pest problems until severe outbreaks occur
Question No. 13
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What is the process of converting complex organic matter into simpler inorganic forms by microorganisms in the soil?
A.
Nitrification
B.
Denitrification
C.
Mineralization
D.
Immobilization
Question No. 14
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The economic principle that describes the relationship between the quantity of a commodity that producers are willing to sell and its price is known as:
A.
Law of Demand
B.
Law of Supply
C.
Elasticity
D.
Market Equilibrium
Question No. 15
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A substance that kills or inhibits the growth of fungi is called a:
A.
Insecticide
B.
Herbicide
C.
Fungicide
D.
Rodenticide
Question No. 16
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The term used for the development of new plant varieties with improved characteristics through scientific methods is:
A.
Plant physiology
B.
Plant pathology
C.
Plant breeding
D.
Plant ecology
Question No. 17
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Which of the following soil components contributes most to soil structure and water retention capacity?
A.
Sand
B.
Silt
C.
Clay
D.
Gravel
Question No. 18
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The agricultural practice of leaving land uncropped and unsown for a season to restore its fertility and moisture is termed:
A.
Intensive cropping
B.
Mixed cropping
C.
Fallowing
D.
Relay cropping
Question No. 19
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What is the main output of photosynthesis in plants?
A.
Carbon dioxide and water
B.
Glucose and oxygen
C.
Nitrogen and phosphorus
D.
Methane and ammonia
Question No. 20
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The marketing channel that involves farmers selling their produce directly to consumers without intermediaries is known as:
A.
Wholesale market
B.
Retail market
C.
Direct marketing
D.
Cooperative marketing
Question No. 21
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Which agricultural technique is employed to control weeds by physically cutting or uprooting them?
A.
Chemical control
B.
Biological control
C.
Mechanical weeding
D.
Crop rotation
Question No. 22
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The science that deals with the prevention, diagnosis, and management of plant diseases is called:
A.
Agronomy
B.
Plant Pathology
C.
Genetics
D.
Microbiology
Question No. 23
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What is the primary benefit of cover crops in a cropping system?
A.
Increasing pest populations
B.
Improving soil health and preventing erosion
C.
Competing with main crops for nutrients
D.
Decreasing soil organic matter
Question No. 24
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The term 'seed viability' refers to the seed's ability to:
A.
Resist diseases during storage
B.
Produce a healthy seedling under favorable conditions
C.
Be easily harvested from the parent plant
D.
Remain dormant indefinitely
Question No. 25
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Which agricultural input is derived from living organisms and used to improve soil fertility and plant growth?
A.
Synthetic pesticides
B.
Inorganic fertilizers
C.
Biofertilizers
D.
Herbicides
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