Agronomy Techniques for Soil Preservation and Management
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Question No. 1
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What is the primary purpose of contour cultivation?
A.
To plant crops in circular patterns
B.
To reduce soil erosion and conserve water
C.
To increase soil permeability
D.
To prevent wind erosion
Question No. 2
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Which soil conservation measure involves placing mulch on the soil surface?
A.
Strip cropping
B.
Mulching
C.
Sub-soiling
D.
Zing terracing
Question No. 3
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Which type of cropping system is best suited to control soil erosion on gentle slopes?
A.
Contour bunding
B.
Strip cropping
C.
Graded bunding
D.
Vertical mulching
Question No. 4
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Contour bunding is most effective on land with a slope of up to:
A.
10%
B.
2%
C.
6%
D.
16%
Question No. 5
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What distinguishes graded bunding from contour bunding?
A.
Graded bunding is used in low-rainfall areas, while contour bunding is used in high-rainfall areas
B.
Contour bunding follows natural land contours, while graded bunding allows controlled drainage
C.
Graded bunding is for shallow soils, while contour bunding is for deep soils
D.
Contour bunding is only used in terraced fields
Question No. 6
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Which soil conservation method is best for deep black soils prone to waterlogging?
A.
Vertical mulching
B.
Broad Bed and Furrow (BBF) system
C.
Sub-soiling
D.
Contour bunding
Question No. 7
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Which of the following soil conservation techniques is best suited for areas with steep slopes (16-33%)?
A.
Zing terracing
B.
Graded bunding
C.
Bench terracing
D.
Strip cropping
Question No. 8
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In which soil conservation method are narrow trenches dug and filled with straw or crop residues?
A.
Graded bunding
B.
Vertical mulching
C.
Bench terracing
D.
Sub-soiling
Question No. 9
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Which of the following soil conservation methods is most suitable for coffee plantations?
A.
Strip cropping
B.
Contour bunding
C.
Vertical mulching
D.
Bench terracing
Question No. 10
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Which soil conservation measure is recommended for areas receiving rainfall above 800 mm annually?
A.
Graded bunding
B.
Contour bunding
C.
Broad Bed and Furrow system
D.
Zing terracing
Question No. 11
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What is the primary function of vegetative barriers in soil conservation?
A.
To increase soil compaction
B.
To promote deep rooting in crops
C.
To reduce soil erosion by slowing down water runoff
D.
To improve soil aeration
Question No. 12
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Which plant species is most commonly used for vegetative barriers?
A.
Rice
B.
Khus (Vetiveria zizanioides)
C.
Wheat
D.
Maize
Question No. 13
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Which mechanical soil conservation method involves breaking the hardpan of soil?
A.
Broad Bed and Furrow
B.
Sub-soiling
C.
Mulching
D.
Contour bunding
Question No. 14
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In which soil conservation method are alternating strips of erosion-resistant and erosion-prone crops planted?
A.
Strip cropping
B.
Mulching
C.
Vertical mulching
D.
Zing terracing
Question No. 15
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Which soil conservation technique is used in moderate to high rainfall areas with 3-10% slopes?
A.
Bench terracing
B.
Zing terracing
C.
Contour bunding
D.
Sub-soiling
Question No. 16
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Which of the following methods is NOT considered an agronomic soil conservation measure?
A.
Contour tillage
B.
Strip cropping
C.
Sub-soiling
D.
Mulching
Question No. 17
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Which soil conservation method is used on undulating land to slow down runoff?
A.
Contour bunding
B.
Bench terracing
C.
Zing terracing
D.
Strip cropping
Question No. 18
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What happens when mechanical soil conservation measures are applied without agronomic practices?
A.
Soil erosion increases
B.
Soil fertility improves significantly
C.
Water infiltration improves but erosion continues
D.
Wind erosion is completely stopped
Question No. 19
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Which of the following soil conservation methods is best for shallow soils?
A.
Contour bunding
B.
Graded bunding
C.
Zing terracing
D.
Vertical mulching
Question No. 20
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In which conservation method are trees or shrubs planted along contours to reduce wind erosion?
A.
Vertical mulching
B.
Vegetative barriers
C.
Sub-soiling
D.
Bench terracing
Question No. 21
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How does contour bunding differ from graded bunding in terms of functionality?
A.
Graded bunding follows land contours, while contour bunding directs water flow
B.
Contour bunding allows water to infiltrate uniformly, while graded bunding facilitates controlled drainage
C.
Both methods are used only on slopes above 10%
D.
Contour bunding is suitable for high rainfall areas, while graded bunding is best for arid regions
Question No. 22
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What is the primary difference between bench terracing and zing terracing?
A.
Bench terracing is used for steeper slopes, while zing terracing is for moderate slopes
B.
Bench terracing is a temporary measure, while zing terracing is permanent
C.
Zing terracing is used in black soils, whereas bench terracing is used in sandy soils
D.
Zing terracing is used in semi-arid regions, while bench terracing is used in humid regions
Question No. 23
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Which factor mainly distinguishes sub-soiling from vertical mulching?
A.
Sub-soiling is used in sandy soils, while vertical mulching is used in rocky soils
B.
Vertical mulching improves fertility, whereas sub-soiling improves plant growth
C.
Sub-soiling improves deep soil aeration, while vertical mulching reduces evaporation
D.
Vertical mulching enhances soil structure, whereas sub-soiling increases soil compaction
Question No. 24
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What is the major difference between vegetative barriers and windbreaks?
A.
Vegetative barriers are temporary, whereas windbreaks are permanent
B.
Vegetative barriers reduce water erosion, while windbreaks reduce wind erosion
C.
Windbreaks help in water infiltration, whereas vegetative barriers improve fertility
D.
Windbreaks are used in humid regions, whereas vegetative barriers are used in arid regions
Question No. 25
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How does strip cropping differ from contour bunding?
A.
Strip cropping reduces soil erosion through alternating crops, while contour bunding prevents runoff using raised barriers
B.
Contour bunding increases plant growth, while strip cropping increases water infiltration
C.
Strip cropping is mainly used on steep slopes, whereas contour bunding is used in flat lands
D.
Contour bunding improves soil fertility, whereas strip cropping reduces weed growth
Question No. 26
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What differentiates broad bed and furrow (BBF) system from contour bunding?
A.
BBF system improves drainage in black soils, while contour bunding conserves water on slopes
B.
BBF system is used in flat areas, whereas contour bunding is used in hilly areas
C.
Contour bunding is used only in high rainfall areas, whereas BBF system is used in drylands
D.
Contour bunding is suitable for sandy soils, while BBF system is ideal for clay soils
Question No. 27
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In what way does agroforestry differ from strip cropping?
A.
Agroforestry integrates trees with crops, while strip cropping alternates crop types
B.
Agroforestry is mainly used in irrigated regions, while strip cropping is used in drylands
C.
Strip cropping reduces evaporation, while agroforestry prevents waterlogging
D.
Strip cropping improves soil aeration, whereas agroforestry enhances nitrogen content
Question No. 28
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What is a key difference between mechanical and agronomic soil conservation measures?
A.
Agronomic measures require heavy machinery, whereas mechanical measures use organic materials
B.
Mechanical measures involve land modification, whereas agronomic measures use cropping techniques
C.
Agronomic measures are used in hilly areas, whereas mechanical measures are used in plains
D.
Mechanical measures are cost-effective, whereas agronomic measures are expensive
Question No. 29
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How does graded bunding compare to contour bunding in terms of rainfall suitability?
A.
Graded bunding is used in high-rainfall areas, whereas contour bunding is used in low-rainfall regions
B.
Both techniques are only used in black soil regions
C.
Graded bunding improves soil fertility, while contour bunding enhances aeration
D.
Contour bunding is more effective in preventing erosion than graded bunding
Question No. 30
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Which is a major distinction between broad bed and furrow (BBF) system and sub-soiling?
A.
Sub-soiling improves crop growth, whereas BBF system increases water retention
B.
Sub-soiling reduces erosion, whereas BBF system prevents water stagnation
C.
BBF system manages surface drainage, while sub-soiling improves root penetration
D.
BBF system is used for irrigated fields, whereas sub-soiling is used in drylands
Question No. 31
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How does vertical mulching differ from conventional mulching?
A.
Vertical mulching places organic matter in trenches, while conventional mulching covers the soil surface
B.
Conventional mulching is only used for orchards, whereas vertical mulching is used for all crops
C.
Conventional mulching reduces erosion, while vertical mulching increases soil compaction
D.
Vertical mulching improves aeration, while conventional mulching retains heat
Question No. 32
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What distinguishes shelterbelts from windbreaks?
A.
Windbreaks improve soil fertility, whereas shelterbelts increase water retention
B.
Shelterbelts are long rows of trees planted across wind direction, while windbreaks are shorter rows
C.
Windbreaks are used for soil conservation, while shelterbelts are used for crop protection
D.
Shelterbelts are temporary measures, whereas windbreaks are permanent
Question No. 33
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What is the primary difference between zing terracing and contour bunding?
A.
Contour bunding is for black soils, while zing terracing is for red soils
B.
Zing terracing is used in moderate slopes, while contour bunding is used in gentle slopes
C.
Contour bunding is only used in orchards, whereas zing terracing is used in field crops
D.
Zing terracing retains more water than contour bunding
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