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