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