1. Which of the following is a leguminous crop?
a) Wheat
b) Soybean
c) Rice
d) Maize
Answer: b) Soybean
2. The practice of growing two or more crops together on the same piece of land is called:
a) Mixed cropping
b) Crop rotation
c) Intercropping
d) Monocropping
Answer: c) Intercropping
3. Which of the following is a staple food crop of India?
a) Cotton
b) Rice
c) Tea
d) Tobacco
Answer: b) Rice
4. Which of the following is the ideal temperature for the growth of maize?
a) 5-10°C
b) 15-20°C
c) 20-30°C
d) 35-40°C
Answer: c) 20-30°C
5. Which type of irrigation is best suited for rice cultivation?
a) Drip irrigation
b) Flood irrigation
c) Sprinkler irrigation
d) Furrow irrigation
Answer: b) Flood irrigation
6. The process of removing weeds from crop fields is called:
a) Plowing
b) Harvesting
c) Weeding
d) Pruning
Answer: c) Weeding
7. What is the main objective of crop rotation?
a) To prevent pest attacks
b) To improve soil fertility
c) To reduce labor costs
d) To increase crop yield
Answer: b) To improve soil fertility
8. Which of the following is a tropical crop?
a) Apple
b) Banana
c) Potato
d) Wheat
Answer: b) Banana
9. Which of the following is a method of weed control in crops?
a) Using herbicides
b) Deep plowing
c) Crop rotation
d) All of the above
Answer: d) All of the above
10. Which nutrient is most essential for the development of healthy roots in crops?
a) Nitrogen
b) Phosphorus
c) Potassium
d) Calcium
Answer: b) Phosphorus
11. Which of the following is the correct term for the removal of excess water from the soil?
a) Drainage
b) Irrigation
c) Aeration
d) Flooding
Answer: a) Drainage
12. Which crop is known for being a "water-efficient crop"?
a) Rice
b) Sorghum
c) Cotton
d) Maize
Answer: b) Sorghum
13. The term "Vigour" in seed refers to:
a) Size of the seed
b) Growth rate of the plant after germination
c) Quality of seed coat
d) Ability to withstand disease
Answer: b) Growth rate of the plant after germination
14. Which of the following is a characteristic of drought-resistant crops?
a) Low water use efficiency
b) High yield in water-scarce conditions
c) Require constant irrigation
d) Cannot survive in dry soil
Answer: b) High yield in water-scarce conditions
15. The main source of nitrogen for plants is:
a) Water
b) Soil minerals
c) Nitrogen fixation by bacteria
d) Organic matter
Answer: c) Nitrogen fixation by bacteria
16. Which of the following is a major pest in rice cultivation?
a) Aphid
b) Whitefly
c) Stem borer
d) Root knot nematode
Answer: c) Stem borer
17. Which of the following is an example of a ratoon crop?
a) Cotton
b) Rice
c) Sugarcane
d) Maize
Answer: c) Sugarcane
18. What is the primary purpose of the 'Green Revolution'?
a) Increase in crop diversity
b) Increase in crop productivity
c) Expansion of agricultural land
d) Development of organic farming
Answer: b) Increase in crop productivity
19. Which of the following is an organic matter used as fertilizer in agriculture?
a) Urea
b) Manure
c) Ammonium nitrate
d) Potassium chloride
Answer: b) Manure
20. What is the primary function of potassium in plants?
a) Promotes root growth
b) Enhances photosynthesis
c) Regulates water balance and enhances disease resistance
d) Forms amino acids
Answer: c) Regulates water balance and enhances disease resistance
21. Which of the following crops is most sensitive to frost?
a) Wheat
b) Maize
c) Rice
d) Potato
Answer: b) Maize
22. Which is the most commonly used method of irrigation in dryland areas?
a) Drip irrigation
b) Flood irrigation
c) Sprinkler irrigation
d) Subsurface irrigation
Answer: a) Drip irrigation
23. Which of the following is a source of organic manure?
a) Urea
b) Green manure
c) Superphosphate
d) Ammonium sulphate
Answer: b) Green manure
24. Which crop is best suited for the Rabi season in India?
a) Rice
b) Soybean
c) Wheat
d) Cotton
Answer: c) Wheat
25. Which of the following plants is a perennial crop?
a) Wheat
b) Maize
c) Sugarcane
d) Barley
Answer: c) Sugarcane
26. The primary function of the root in plants is to:
a) Conduct photosynthesis
b) Absorb water and nutrients
c) Produce flowers
d) Store food
Answer: b) Absorb water and nutrients
27. Which of the following is a secondary nutrient for plant growth?
a) Nitrogen
b) Phosphorus
c) Calcium
d) Potassium
Answer: c) Calcium
28. What is the main objective of mulching?
a) Prevent the growth of weeds
b) Improve soil texture
c) Provide shade to plants
d) Enhance seed germination
Answer: a) Prevent the growth of weeds
29. Which of the following is a common disease affecting rice crops?
a) Downy mildew
b) Rice blast
c) Wheat rust
d) Cotton bollworm
Answer: b) Rice blast
30. Which of the following crops requires the highest amount of water for its growth?
a) Maize
b) Rice
c) Wheat
d) Cotton
Answer: b) Rice
31. Which soil type is considered most suitable for growing rice?
a) Sandy soil
b) Loamy soil
c) Clay soil
d) Saline soil
Answer: c) Clay soil
32. Which of the following is a non-leguminous green manure crop?
a) Sunhemp
b) Cowpea
c) Groundnut
d) Mustard
Answer: a) Sunhemp
33. Which of the following methods is used to preserve soil moisture?
a) Terracing
b) Crop rotation
c) Soil conservation
d) All of the above
Answer: d) All of the above
34. The practice of growing a single crop in a given field is called:
a) Mixed cropping
b) Monocropping
c) Agroforestry
d) Intercropping
Answer: b) Monocropping
35. Which of the following is the most commonly used legume in intercropping with maize?
a) Soybean
b) Cowpea
c) Groundnut
d) Peas
Answer: b) Cowpea
36. Which of the following is a disadvantage of monocropping?
a) Increased pest and disease problems
b) Improved soil health
c) Reduced water requirement
d) Better crop rotation
Answer: a) Increased pest and disease problems
37. Which of the following is not an organic farming practice?
a) Use of chemical fertilizers
b) Composting
c) Crop rotation
d) Green manuring
Answer: a) Use of chemical fertilizers
38. Which of the following is used as a bio-fertilizer in agriculture?
a) Azospirillum
b) Urea
c) DAP
d) Potash
Answer: a) Azospirillum
39. Which of the following crops is grown during the Kharif season in India?
a) Barley
b) Cotton
c) Wheat
d) Mustard
Answer: b) Cotton
40. Which of the following is the ideal pH range for most crops?
a) 3-4
b) 4-5
c) 5.5-7
d) 7-8
Answer: c) 5.5-7
41. Which of the following is the most important source of nitrogen for plants?
a) Ammonium nitrate
b) Atmospheric nitrogen
c) Potassium nitrate
d) Urea
Answer: b) Atmospheric nitrogen
42. Which of the following is a primary nutrient essential for plant growth?
a) Calcium
b) Nitrogen
c) Magnesium
d) Sulfur
Answer: b) Nitrogen
43. Which of the following is a monocot plant?
a) Bean
b) Tomato
c) Wheat
d) Sunflower
Answer: c) Wheat
44. What is the main purpose of "green revolution"?
a) Promote organic farming
b) Increase agricultural productivity through modern techniques
c) Decrease the cost of farming
d) Protect endangered species
Answer: b) Increase agricultural productivity through modern techniques
45. Which of the following crops is most commonly affected by the "Yellow rust" disease?
a) Rice
b) Wheat
c) Maize
d) Barley
Answer: b) Wheat
46. The process of converting atmospheric nitrogen into a form usable by plants is known as:
a) Photosynthesis
b) Nitrogen fixation
c) Respiration
d) Transpiration
Answer: b) Nitrogen fixation
47. Which of the following is an example of a warm-season crop?
a) Rye
b) Oats
c) Maize
d) Barley
Answer: c) Maize
48. What is the practice of "Germplasm conservation"?
a) Increasing crop yield
b) Preservation of seed varieties
c) Weeding out unhealthy plants
d) Use of chemical fertilizers
Answer: b) Preservation of seed varieties
49. Which of the following is the primary function of chlorophyll in plants?
a) Absorb water from the soil
b) Carry out photosynthesis
c) Store food
d) Transport nutrients
Answer: b) Carry out photosynthesis
50. Which of the following is the correct sequence of growth stages in crops?
a) Germination, Vegetative, Flowering, Harvesting
b) Vegetative, Germination, Flowering, Harvesting
c) Germination, Harvesting, Vegetative, Flowering
d) Flowering, Germination, Harvesting, Vegetative
Answer: a) Germination, Vegetative, Flowering, Harvesting
51. Which of the following is a nitrogen-fixing crop?
a) Maize
b) Wheat
c) Soybean
d) Rice
Answer: c) Soybean
52. Which of the following is a factor that limits crop production?
a) Soil fertility
b) Water availability
c) Temperature
d) All of the above
Answer: d) All of the above
53. The soil pH level for optimal plant growth is typically:
a) 2-3
b) 4-5
c) 5.5-7.0
d) 7.5-8.0
Answer: c) 5.5-7.0
54. Which of the following is a common method of controlling plant diseases?
a) Crop rotation
b) Use of pesticides
c) Resistant varieties
d) All of the above
Answer: d) All of the above
55. Which of the following crops is generally associated with a "high-input" farming system?
a) Rice
b) Maize
c) Groundnut
d) Sugarcane
Answer: d) Sugarcane
56. Which of the following is an example of a biotic factor in agriculture?
a) Soil pH
b) Temperature
c) Pests
d) Rainfall
Answer: c) Pests
57. Which of the following is an important aspect of sustainable agriculture?
a) Heavy use of chemical fertilizers
b) Use of renewable resources
c) Maximizing land use without regard to environmental effects
d) Overexploitation of water resources
Answer: b) Use of renewable resources
58. Which of the following is an example of a cool-season crop?
a) Wheat
b) Rice
c) Cotton
d) Maize
Answer: a) Wheat
59. What does the term 'agroforestry' refer to?
a) Growing crops in waterlogged areas
b) Integrating trees with crop or livestock production
c) The use of advanced irrigation systems
d) The practice of monocropping
Answer: b) Integrating trees with crop or livestock production
60. Which of the following is a disadvantage of using chemical fertilizers?
a) They provide immediate nutrients to plants
b) They can cause soil degradation over time
c) They are eco-friendly
d) They are cost-effective in the long run
Answer: b) They can cause soil degradation over time
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