A) Arid desert B) Cold and dry C) Temperate D) Warm and humid
A) Rocky soil B) Heavy clay C) Compacted silt D) Well-drained, sandy loam
A) Late autumn B) Mid-winter C) Early spring D) Summer
A) Flowers B) Tubers or vine cuttings C) Roots D) Leaves
A) Right on the surface B) 12 inches C) Approximately 4-6 inches D) 1 inch
A) To make harvesting easier B) To keep the tubers warm C) To allow the vines to climb and maximize sunlight exposure D) To prevent weed growth
A) Praying mantises B) Ladybugs C) Yam beetles D) Earthworms
A) Black spot B) Anthracnose C) Rust D) Powdery mildew
A) Only when the soil is completely dry B) Never, yams prefer dry conditions C) Regularly, keeping the soil moist but not waterlogged D) Daily, regardless of soil moisture
A) A balanced fertilizer high in potassium B) No fertilizer is needed C) A fertilizer high in phosphorus only D) A fertilizer high in nitrogen only
A) 6-12 months B) 2-3 years C) 1 week D) 1-2 months
A) Use a tractor to plow the field B) Carefully dig around the tubers to avoid damage C) Pull the vines forcefully from the ground D) Leave the yams in the ground indefinitely
A) In the refrigerator B) In a cool, dry, and well-ventilated place C) In direct sunlight D) In a damp cellar
A) To shade the roots B) To prevent vine growth C) To encourage tuber development D) To reduce airflow
A) Freezing the yams B) Soaking the yams in water C) Allowing the skin to harden, improving storage life D) Boiling the yams
A) Calcium B) Phosphorus C) Nitrogen D) Potassium
A) 8.5-9.0 B) 6.0-6.5 C) 4.0-4.5 D) 7.5-8.0
A) To increase the size of the yam tubers B) To change the color of the yams C) To prevent soil depletion and pest buildup D) It's not important
A) Grafting B) Air layering C) Using setts (pieces of tubers) D) Direct seeding
A) Reduces competition for resources like nutrients and sunlight B) Improves soil compaction C) Attracts pollinators D) Increases humidity around the plants
A) Increases soil acidity B) Accelerates soil erosion C) Attracts pests D) Helps retain soil moisture and suppress weeds
A) Drying yam leaves for tea B) Growing seedlings C) Storing harvested yams D) Processing yams into flour
A) Yams have smoother skin B) Yams are smaller in size C) Yams are typically sweeter and have orange flesh D) Yams are typically starchier and less sweet
A) Nigeria B) India C) China D) Brazil
A) Promoting leafy growth B) Root development C) Enzymatic activity and regulating water balance D) Nitrogen fixation
A) Increased resistance to pests B) Larger tuber size C) Faster growth compared to using setts D) Lower cost compared to setts
A) A disease affecting the leaves B) The flowering stage of the plant C) The harvesting season D) A period of inactivity of the tuber
A) Providing support for the vines to climb B) Protecting the tubers from sunlight C) Controlling soil erosion D) Irrigating the plants
A) Animal feed B) Making cooking oil C) Traditional medicine D) Food
A) To prevent fungal infections B) To improve germination rate C) To increase seed size D) Yams are not grown from seed |