A) Hot and arid desert B) Warm and humid subtropical C) Cold and dry temperate D) Cool and mountainous alpine
A) Waterlogged peat B) Well-drained, sandy loam C) Pure sand D) Heavy clay
A) 6.0-7.5 B) 8.0-9.0 C) 9.5-10.5 D) 4.0-5.0
A) Grafting B) Air layering C) Direct seeding D) Root cuttings
A) Dry season B) Late autumn C) Spring or early summer D) Mid-winter
A) 10-12 meters B) 6-8 meters C) 1-2 meters D) 3-4 meters
A) To attract pests B) To improve fruit production and tree shape C) To stunt growth D) To prevent flowering
A) Potassium B) Calcium C) Phosphorus D) Nitrogen
A) Regularly, especially during dry periods B) Only during the rainy season C) Never, they are drought-tolerant D) Very sparingly to encourage deep roots
A) Citrus psyllid B) Praying mantis C) Ladybug D) Earthworm
A) Rose black spot B) Tomato blight C) Powdery mildew D) Citrus canker
A) Overwatering B) Ignoring leaf spots C) Nitrogen-rich fertilizer D) Copper sprays and sanitation
A) To stunt tree growth B) To improve the size and quality of remaining fruit C) To prevent pests D) To increase the number of fruit
A) When the fruit falls off the tree B) When the fruit is completely dry C) When the fruit is still green and hard D) When the fruit turns slightly yellow and feels heavy
A) In direct sunlight B) In a warm, humid place C) In a cool, dry place D) In water
A) Depletes soil nutrients B) Conserves moisture and suppresses weeds C) Increases soil temperature D) Attracts pests and diseases
A) No fertilizer is needed B) A high-nitrogen fertilizer C) A balanced citrus fertilizer D) A lawn fertilizer
A) Remove all mulch B) Prune heavily C) Water excessively D) Wrap the trunk and branches with burlap or frost cloth
A) Pollination B) Fertilizer application C) Pest control D) Root aeration
A) Attract pests B) Increase soil acidity C) Deplete soil nutrients D) Improve soil health and suppress weeds
A) Applying fertilizer B) Removing a ring of bark to promote fruiting C) Pruning the branches D) Wrapping the trunk with cloth
A) To change the fruit flavor B) To provide disease resistance and adaptability C) To prevent flowering D) To increase fruit size
A) Yellowing leaves B) Dark green leaves C) Abundant flowering D) Thick branches
A) Cause root rot B) Prevent photosynthesis C) Attract pests D) Enhance nutrient uptake
A) To block sunlight B) To increase humidity C) To protect trees from strong winds D) To attract pollinators
A) Increases soil salinity B) Promotes waterlogging C) Decreases nutrient availability D) Prevents root rot
A) 0-10% B) 90-100% C) 60-80% D) 20-40%
A) Keeping them in a dark room B) Pruning the roots C) Gradually acclimating seedlings to outdoor conditions D) Applying fertilizer
A) Branch thickness B) Climate suitability C) Leaf shape D) Fruit color
A) To increase soil temperature B) To attract pollinators C) To reduce competition for nutrients and water D) To provide shelter for beneficial insects |