How to Cultivate Rambutans - Exam
  • 1. What climate is best suited for rambutan cultivation?
A) Arid
B) Tropical
C) Temperate
D) Alpine
  • 2. What is the ideal temperature range for rambutan growth?
A) 22-35°C
B) 10-20°C
C) 0-10°C
D) 35-45°C
  • 3. What type of soil is preferred for rambutan trees?
A) Well-drained, sandy loam
B) Heavy clay
C) Pure sand
D) Rocky
  • 4. What is the recommended pH range for rambutan soil?
A) 5.5-6.5
B) 3.0-4.0
C) 8.5-9.5
D) 7.0-8.0
  • 5. How are rambutan trees typically propagated?
A) Direct seeding
B) Grafting
C) Layering
D) Cutting
  • 6. What is the best time of year to plant rambutan trees?
A) Dry season
B) Late rainy season
C) Early rainy season
D) Winter
  • 7. What is the recommended spacing between rambutan trees?
A) 10-12 meters
B) 5-7 meters
C) 1-2 meters
D) 2-3 meters
  • 8. What is the purpose of pruning rambutan trees?
A) To attract pests
B) To prevent flowering
C) To stunt growth
D) To shape the tree and improve airflow
  • 9. What is a common disease that affects rambutan trees?
A) Citrus canker
B) Potato blight
C) Rose black spot
D) Powdery mildew
  • 10. What is a common pest that affects rambutan trees?
A) Beetles
B) Fruit flies
C) Caterpillars
D) Aphids
  • 11. How often should rambutan trees be fertilized?
A) Never
B) Once every 5 years
C) Once a year
D) Several times a year
  • 12. What type of fertilizer is generally recommended for rambutan trees?
A) High phosphorus fertilizer
B) High nitrogen fertilizer
C) Balanced NPK fertilizer
D) High potassium fertilizer
  • 13. When do rambutan trees typically begin to bear fruit?
A) 10-15 years after planting
B) Immediately after planting
C) 3-5 years after planting
D) Never
  • 14. What indicates that a rambutan fruit is ripe?
A) Hard fruit texture
B) Small size
C) Bright red skin color
D) Green skin color
  • 15. How should rambutan fruits be harvested?
A) By shaking the tree
B) Using pruning shears
C) By pulling the fruits
D) Letting them fall to the ground
  • 16. What is the shelf life of rambutan fruits after harvest?
A) Indefinitely
B) Several months
C) A few days
D) Several weeks
  • 17. Why is proper drainage important for rambutan trees?
A) To attract beneficial insects
B) To increase fruit sweetness
C) To encourage rapid growth
D) To prevent root rot
  • 18. What is the benefit of mulching around rambutan trees?
A) Attracts pests
B) Increases soil temperature drastically
C) Conserves moisture and suppresses weeds
D) Depletes soil nutrients
  • 19. What is the role of bees in rambutan cultivation?
A) Pollination
B) Soil aeration
C) Water distribution
D) Pest control
  • 20. What is the purpose of windbreaks in rambutan orchards?
A) To protect trees from strong winds
B) To block sunlight
C) To increase humidity
D) To attract birds
  • 21. What type of water is best for irrigating rambutan trees?
A) Sewage water
B) Clean, fresh water
C) Extremely acidic water
D) Saltwater
  • 22. Why is regular weeding important around rambutan trees?
A) To increase soil erosion
B) To reduce competition for nutrients and water
C) To attract beneficial insects
D) To provide shelter for pests
  • 23. How does humidity affect rambutan fruit production?
A) Low humidity is beneficial
B) High humidity is generally beneficial
C) Humidity has no effect
D) High humidity always causes disease
  • 24. What is the term for removing water sprouts from a rambutan tree?
A) Budding
B) Suckering
C) Girdling
D) Scioning
  • 25. What is the best way to protect rambutan fruits from birds?
A) Loud noises
B) Mirrors
C) Netting
D) Poison
  • 26. What is the impact of excessive rainfall on rambutan trees?
A) Deters pests
B) Increases fruit sweetness
C) Can lead to fruit cracking and fungal diseases
D) Always beneficial for growth
  • 27. What role does calcium play in rambutan tree health?
A) Enhances fruit color
B) Strengthens cell walls
C) Promotes flowering
D) Attracts pollinators
  • 28. What is a sign of nitrogen deficiency in rambutan trees?
A) Rapid growth
B) Yellowing leaves
C) Dark green leaves
D) Excessive flowering
  • 29. What is the approximate lifespan of a rambutan tree?
A) 50-60 years
B) 5-10 years
C) 100+ years
D) 1-2 years
  • 30. Besides fruit, what else can the rambutan tree be used for?
A) Perfumes
B) Timber
C) Nothing
D) Dyes
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