How to Cultivate Langsats - Test
  • 1. What climate is ideal for Langsat cultivation?
A) Subarctic
B) Temperate
C) Tropical
D) Arid
  • 2. What is the preferred soil type for Langsats?
A) Well-drained loam
B) Clay
C) Rocky
D) Sandy
  • 3. At what age do Langsat trees typically begin to bear fruit?
A) 10-12 years
B) 5-7 years
C) 15-20 years
D) 1-2 years
  • 4. What propagation method is commonly used for Langsats?
A) Seed
B) Grafting
C) Layering
D) Cutting
  • 5. What is the optimal pH level for Langsat soil?
A) 7.0-8.0
B) 4.0-5.0
C) 5.5-6.5
D) 8.5-9.5
  • 6. Which of these pests is a common threat to Langsat trees?
A) Spider mites
B) Caterpillars
C) Fruit borers
D) Aphids
  • 7. What type of fertilizer is generally recommended for Langsats?
A) Potassium-rich
B) Nitrogen-rich
C) Balanced NPK
D) Phosphorus-rich
  • 8. How often should Langsat trees be watered during dry seasons?
A) Rarely
B) Never
C) Once a month
D) Regularly
  • 9. What is the ideal spacing between Langsat trees in an orchard?
A) 5-6 meters
B) 2-3 meters
C) 8-10 meters
D) 1-2 meters
  • 10. What is the primary purpose of pruning Langsat trees?
A) Increase fruit size
B) Reduce water consumption
C) Prevent disease
D) Improve air circulation
  • 11. What color does ripe Langsat fruit typically exhibit?
A) Green
B) Red
C) Purple
D) Yellowish-brown
  • 12. Which of the following is a sign of overwatering in Langsat trees?
A) Increased fruit production
B) Dark green leaves
C) Yellowing leaves
D) Faster growth
  • 13. Why is proper drainage important for Langsat cultivation?
A) Prevents root rot
B) Reduces soil erosion
C) Attracts pollinators
D) Increases nutrient absorption
  • 14. What should be done to prevent sunburn on young Langsat trees?
A) Increase watering
B) Apply fertilizer
C) Prune heavily
D) Provide shade
  • 15. Which element promotes strong root development in Langsats?
A) Phosphorus
B) Nitrogen
C) Potassium
D) Calcium
  • 16. What is the benefit of mulching around Langsat trees?
A) Conserves moisture
B) Attracts pests
C) Increases soil pH
D) Reduces soil temperature
  • 17. Which harvesting method is best for Langsat fruits?
A) Cut the stem with clippers
B) Let the fruit fall
C) Shake the tree
D) Pull the fruit
  • 18. What type of grafting is most commonly used for Langsats?
A) Approach grafting
B) Cleft grafting
C) Bud grafting
D) Whip grafting
  • 19. What is the purpose of applying fungicide to Langsat trees?
A) Promote growth
B) Increase fruit size
C) Kill insects
D) Prevent fungal diseases
  • 20. Which of the following is NOT a recommended pruning tool?
A) Pruning shears
B) Axe
C) Pruning saw
D) Loppers
  • 21. What is the best time of day to water Langsat trees?
A) Evening
B) Midday
C) Late afternoon
D) Early morning
  • 22. What can be done to improve pollination in Langsat orchards?
A) Remove flowers
B) Increase watering
C) Introduce pollinators
D) Apply fertilizer
  • 23. How should you store Langsat fruit after harvesting?
A) In water
B) Warm and humid place
C) In direct sunlight
D) Cool and dry place
  • 24. What is the meaning of 'NPK' in fertilizer composition?
A) Nitrogen, Phosphorus, Potassium
B) Nutrient, Protein, Kalium
C) None of the above
D) Natural, Plant, Kulture
  • 25. Why is it important to remove weeds around Langsat trees?
A) Increase soil pH
B) Attract pollinators
C) Reduce soil temperature
D) Reduce competition for resources
  • 26. Which disease causes dark spots on Langsat fruits and leaves?
A) Leaf rust
B) Anthracnose
C) Powdery mildew
D) Root rot
  • 27. What type of soil amendment can improve drainage in clay soils?
A) Organic matter
B) Clay
C) Sand
D) Lime
  • 28. Why is wind protection important for Langsat trees?
A) Increases pollination
B) Prevents sunburn
C) Prevents branch breakage
D) Reduces water consumption
  • 29. What is the ideal humidity level for Langsat growth?
A) Low humidity
B) No humidity
C) High humidity
D) Moderate humidity
  • 30. Which benefit does companion planting offer to Langsat trees?
A) Increased fruit size
B) Improved soil pH
C) Faster growth rate
D) Pest control
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