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